FOR AIPMT, CCE(MEDICAL ENTR) BIOLOGY QUESTIONS

1.  Formation of gametophyte directly from
sporophyte without meiosis is  [1988]
(a)  Apospory  (b)  Apogamy
(c)  Parthenogenesis  (d)  Amphimixis
2.  Parthenogenesis is  [1988]
(a)  development of embr yo without
fertilization
(b)  development of fr uit without
fertilization
(c)  development of fruit without hormones
(d)  development of embryo from egg without
fertilization
3.  Male gametophyte of angiosperms is shed as
[1988]
(a)  four celled pollen grain
(b)  three celled pollen grain
(c)  microspore mother cell
(d)  anther
4.  Total number of meiotic division required for
forming 100 zygotes/100 grains of wheat is
[1988]
(a)  100  (b)  75
(c)  125  (d)  50
5.  Double fertilization and triple fusion were
discovered by  [1988, 93]
(a)  Hofmeister
(b)  Nawaschin and Guignard
(c)  Leeuwenhoek
(d)  Strasburger
6.  Development of an organism from female
gamete/egg without involving fertilization
is    [1989]
(a)  Adventitive embryony
(b)  Polyembryony
(c)  Parthenocarpy
(d)  Parthenogenesis
7.  Nucellar embryo is  [1989]
(a)  Amphimictic haploid
(b)  Amphimictic diploid
(c)  Apomictic haploid
(d)  Apomictic diploid
8.  Generative cell was destroyed by laser but a
normal pollen tube was still formed because
(a)  vegetative cell is not damaged  [1989]
(b)  contents of killed generative cell stimulate
pollen growth
(c)  laser beam stimulates growth of pollen
tube
(d)  the region of emergence of pollen tube
is not harmed
9.  Which is correct?  [1989]
(a)  Gametes are invariably haploid
(b)  Spores are invariably haploid
(c)  Gametes are generally haploid
(d)  Both spores and gametes are invariably
haploid
10.  A diploid female plant and a tetraploid male
plant are crossed. The ploidy of endosperm
shall be    [1989, 2004]
(a)  tetraploid  (b)  triploid
(c)  diploid  (d)  pentaploid
11.  Which ones produces androgenic haploids in
anther cultures?  [1990]
(a)  Anther wall
(b)  Tapetal layer of anther wall
(c)  Connective tissue
(d)  Young pollen grains
12.  Male gametophyte of angiosperms/monocots
is    [1990]
(a)  Microsporangium (b)  Nucellus
(c)  Microspore  (d)  Stamen
13.  Female gametophyte of angiosperms is
represented by  [1990]
(a)  Ovule
(b)  Megaspore mother cell
(c)  Embryo sac
d)nucleus.

14.  Sperm and egg nuclei fusedue to  [1990]
(a)  base pairing of their DNA and RNA
(b)  formation of hydrogen bonds
(c)  mutual attraction
(d)  attraction of their protoplasts
15.  Entry of pollen tube through micropyle is
[1990]
(a)  Chalazogamy  (b)  Mesogamy
(c)  Porogamy  (d)  Pseudogamy
16.  Cellular totipotency was demonstrated by
[1991]
(a)  Theodore Schwann
(b)  A.V. Leeuwenhoek
(c)  F.C. Steward
(d)  Robert Hooke
17.  Pollination occurs in  [1991]
(a)  Bryophytes and angiosperms
(b)  Pteridophytes and angiosperms
(c)  Angiosperms and gymnosperms
(d)  Angiosperms and fungi
18.  Embryo sac occurs in    [1991]
(a)  Embryo
(b)  Axis part of embryo
(c)  Ovule
(d)  Endosperm
19.  Which of the following pair has haploid
structures?  [1991]
(a)  Nucellus and antipodal cells
(b)  Antipodal cells and egg cell
(c)  Antipodal cells and megaspore mother
cell
(d)  Nucellus and primar y endosper m
nucleus
20.  Point out the odd one?  [1991]
(a)  Nucellus  (b)  Embryo sac
(c)  Micropyle  (d)  Pollen grain
21.  Syngamy means  [1991]
(a)  fusion of gametes
(b)  fusion of cytoplasms
(c)  fusion of two similar spores
(d)  fusion of two dissimilar spores
22.  Double fertilization is fusion of   [1991]
(a)  two eggs
(b)  two eggs and polar nuclei with pollen
nuclei
(c)  one male gamete with egg and other with
synergid
(d)  one male gamete with egg and other with
secondary nucleus
23.  Meiosis is best observed in dividing  [1992]
(a)  cells of apical meristem
(b)  cells of lateral meristem
(c)  microspores and anther wall
(d)  microsporocytes
24.  A population of genetically identical
individuals, obtained from asexual
reproduction is  [1993]
(a)  Callus  (b)  Clone
(c)  Deme  (d)  Aggregate
25.  Which of the following plant cells will show
totipotency?  [1993]
(a)  Sieve tubes  (b)  Xylem vessels
(c)  Meristem  (d)  Cork cells
26.  Study of formation, growth and development
of new individual from an egg is  [1993]
(a)  Apomixis  (b)  Embryology
(c)  Embryogeny  (d)  Cytology
27.  Ovule is straight with funiculus, embryo sac,
chalaza and micropyle lying on one straight
line. It is    [1993]
(a)  Orthotropous  (b)  Anatropous
(c)  Campylotropous  (d)  Amphitropous
28.  Double fertilization is characteristic of
[1993]
(a)  Angiosperms  (b)  Pteridophytes
(c)  Gymnosperms  (d)  Bryophytes
29.  Number of meiotic divisions required to
produce 200/400 seeds of Pea would be
[1993]
(a)  200/400  (b)  400/800
(c)  300/600  (d)  250/500
30.  Haploid plant cultures are got from  [1994]
(a)  leaves  (b)  root tip
(c)  pollen grain  (d)  buds
31.  Chief pollinators of agricultural crops are
[1994]
(a)  butterflies  (b)  bees
(c)  moths  (d)  beetles
32.  Transfer of pollen to the stigma of another
flower of the same plant is  [1994]
(a)  Autogamy  (b)  Allogamy
(c)  Xenogamy  (d)  Geitonogamy
33.  Fertilization involving carrying of male
gametes by pollen tube is  [1994]
(a)  Porogamy  (b)  Siphonogamy
(c)  Chalazogamy  (d)  Syngonogamy

34.  One of the most resistant biological material
is    [1994]
(a)  lignin  (b)  hemicellulose
(c)  lignocellulose  (d)  sporopollenin
35.  In an angiosperm, how many microspore
mother cells are required to produce 100
pollen grains  [1995]
(a)  25  (b)  50
(c)  75  (d)  100
36  The polyembryony commonly occurs in
[1995]
(a)  citrus  (b)  turmeric
(c)  tomato  (d)  potato
37.  Reproducing new plants by cells instead of
seeds is known as  [1995]
(a)  mutation  (b)  tissue culture
(c)  antibiotics  (d)  biofertilizer
38.  How many pollen grains will be formed after
meiotic division in ten microspore mother
cells?  [1996]
(a)  10  (b)  20
(c)  40  (d)  80
39.  In angiosperms, triple fusion is required for
the formation of  [1996]
(a)  embryo  (b)  endosperm
(c)  seed coat  (d)  fruit wall
40.  If an angiospermic male plant is diploid and
female plant tetraploid, the ploidy level of
endosperm will be  [1997]
(a)  haploid  (b)  triploid
(c)  tetraploid  (d)  pentaploid
41.  The endosperm of gymnosperm is  [1999]
(a)  triploid  (b)  haploid
(c)  diploid  (d)  polyploid
42.  Flowers showing ornithophily show few
characteristic like  [1999]
(a)  blue flower with nectaries at base of
corolla
(b)  red sweet scented flower with nectaries
(c)  bright red f lower into thick
inflorescence
(d)  white flowers with fragrance
43.  Double fertilisation leading to initiation of
endosperm in Angiosperms require  [2000]
(a)  fusion of one polar nucleus and the
second male gamete only
(b)  fusion of two polar nuclei and the second
male gamete
(c)  fusion of four or more polar nuclei and
the second male gamete only
(d)  all the above kinds of fusion in different
angiosperms
44.  Eight nucleate embryo sacs are   [2000]
(a)  always tetrasporic
(b)  always monosporic
(c)  always bisporic
(d)  sometime monosporic, sometimes
bisporic and sometimes tetrasporic
45.  Anemophily type of pollination is found in
[2001]
(a)  Salvia  (b)  Bottle brush
(c)  Vallisneria  (d)  Coconut
46.  Adventive polyembryony in citrus is due to
[2001, 05]
(a)  nucellus  (b)  integuments
(c)  zygotic embryo  (d)  fertilised egg
47.  In angiosperms pollen tubes liberate their
male gametes into the     [2002]
(a)  central cell  (b)  antipodal cell
(c)  egg cell  (d)  synergids
48.  What is the direction of micropyle in
anatropous ovule ?    [2002]
(a)  upward  (b)  downward
(c)  right  (d)  left
49.  Which type of association is found in between
entomophilous flower and pollinating agent
[2002]
(a)  mutualism  (b)  commensalism
(c)  cooperation  (d)  co-evolution
50.  In angiosperms all the four microspores of
tetrad are covered by a layer which is formed
by    [2002]
(a)  pectocellulose  (b)  callose
(c)  cellulose  (d)  sporopollenin
51.  In a flowering plant, archesporium gives rise
to    [2003]
(a)  only tapetum and sporogenous cells
(b)  only the wall of the sporangium
(c)  both wall and the sporogenous cells
(d)   wall and the tapetum
52.  An ovule which becomes curved so that the
nucellus and embryo sac lie at right angles to
the funicle is     [2004]
(a)  Hemitropous
(b)  Campylotropous
(c)  Anatropous  (d)  Orthotropous

TRY THESE FOR CHEMISTRY EXM

ALAAP TUTORIALS.

Himan Kr. Barman

9706984610/ hbtutor11.blogspot.com

PART-1

1.Define limiting reagent? Give example.

2.State Hunds rule of maximum multiplicity? Write E.C. of Ca.

3.write Aufbau principle ? arrange in increasing order of energy :  2s,3d,4f,2p

4.which of the following orbital does not exist ? give reason-: 2s,2d,3f,4f

5.write Bohrs postulate ? mention any two limitations.

6.Write Rutherfords atomic models drawbacks.

7.write any  two A. Heisenburgs uncertainty principle.

B.Paulis exclusion principle.      C.De Broglie hypothesis

8.define quantum no. ? write significance.

9. which q.n gives shape & orientation of orbital.

10.distinguish orbit & orbital.

11.what is degenerated orbital ? give example.

12.write E.C. of Cu & Cr ? justify your answer.

13state modern periodic law ? write gen E.C of S-block & P-block elements.

14.what is shielding effect ?(screening)

15why Cations are smaller than parent atoms ?

16. Define isoelectron species? Give example.

17.find the iso electronic species  O^2- , F^-    Na⁺ ,

18.Define Ionisation Enthalpy ? how it is changed across a period ?

19.Define diagonal relationship ? Write the diagonal relationship between Mg & Li ?

20.Explain 1^st ionization enthalpy is less than 2^nd I.E. ?

Q1.Write 1^st law of thermodynamics ?  prve that ΔH=ΔU+ΔnRT .

Q.2.Write Hess`s law of constant heat summation ?

Q.3. what is bond enthalpy ? write the 2^nd law of thermodynamics ?

Q.5. define entropy ? write criteria of spontaneity w.r.t. entropy ?

Q.6. what is Gibbs free energy ? when a reaction become

 A. spontaneous

B.equillibrium

Q.7.define

1. reversible process

2.state function

3.intensive property.

Q.8.Define rate constant ? for a reaction show that  Kc=[C]^c [D]^d/[A]^a[B]^b

Q.9.for a gaseous reaction  : aA+bB ↔cC+dD show that Kp = Kc(RT)^Δn

Q.10.Write Le Chatelier principle . for the reaction N_2(g) +3H_2(g)↔2NH_3(g)  ΔH=-93.6 KJ write the direction of reaction if

1.temparature is increased

2.pressure is increased

3.N₂ is removed

Q.11.BCl₃ has zero dipole moment-explain?

Q.12.graphite good conductor of electricity where as diamond-Explain ?

Q.13.what are sillicons ?how they are formed ?

Q.14.What is catenation ? how it is changed in a group ?

Q.15.KO₂  is paramagnetic –explain ?

Q.16. Find Lewis acid & bases

Br ^_ ,Ag⁺ , NCl₃,NH₃

Q.17.F has less electron gain enthalpy than Cl     , explain why ?

Q.17.What is isomerism ? write different types isomerism ?

Q.18.what is hybridization ? write the conditions for hybridization ?

Q.19.δ bond are stronger than ᴨ bond ?

Q.20.what is free radicals ? explain free radicals are very reactive ?

Q.21.what are carbocations ? write their stability order ?

Q.22.what is Markownikoffs rule ? give example ?

Q.23. some important topics from Environmental chemistry …

A.ozone layer, depletion & adverse effect

B.green house effect & global warming.

C.acid rain & its effect

D. fog

E.effect of- carbon monoxide, oxides of sulpher.

F.B.O.D , eutrophication

Q.24.what is resonance ? explain resonance in O_{3 ,} CO₃^2- ,benzene

Q.25 define : functional group,homologous series,inductive effect.

Q.26. define coefficient of viscosity ? why liquid drops are spherical ?

Q.27. explain HF is liquid but HCl is gas.

Q.28.define H- bonding ? how viscosity changes with temperature ?

Q.29. define  bond order ? Draw molecular orbital diagram of Oxygen ?

Q.30. He ₂ doesn’t exist- why ?

Q.31.prove  Cp-Cv=R. what is gas constant ?

Q.32.Write the real gas equation ? give significance of a & b ?

Q.33.Interprete absolute zero in terms of K.T. of gases ?

Q.34.what is diborane ?

Q.35. what is isotope ? which one isotope of hydrogen is radioactive ?

Q.36.white is heavy water ? write preparation & uses ?

Q.37.how hydrogen peroxide is preapared ? why it is sored in coloured bottle ?

Q.38. describe a process to remove permanent hardness of water ?

Q.39.write difference betn oxidation no. & valency ?

Q.40.what is common ion effect ? what is abuffer soln. ?give exm ?

Q.41. fid O.N.

A) Cr in Cr₂ O₇^-  (B) Mn in  MnO₄^-

© P in H₄P₂O₇

Q.42. balance by ion electron method 

(A) MnO₄^- +H⁺ + C₂O₄^2-  →  Mn²⁺ +H₂O+ CO₂

(B) Cr₂ O₇^-  + H⁺+ Cl ^-   →  Cr³⁺ + Cl₂ +H₂O.

Q.43.calculate P^H of 10^-8 M HCl ?

Q.44. determine the empirical formula of an oxide of iron which has 69.9 % Iron & 30.10 % hydrogen by mass ?

Q45. If 2 moles of Carbon  are burnt in 16g dioxygen calculate the CO₂ produced ?

Q.46.at 300K Kp =2.0 Pa. Find Kc for the reaction : 2A_(g) ↔2B_(g) + C_(g)

_Q.47. complete the reaction :

(A) CH₂=CH₂ +Br₂       →(CCl₄)→?

B) CH₃CH=CH₂ + HBr →peroxide→ ?

© benzene +Zn dust → ?

(D) Ethylbromide + alc KOH→ ?

Q.47. Sorry I am unable to give some question due to my typing  inefficiency…..

CHEMISTRY PART II

ALAAP TUTORIALS
H.K.BARMAN

Q1.Write 1^st law of thermodynamics ?  prve that ΔH=ΔU+ΔnRT .

Q.2.Write Hess`s law of constant heat summation ?

Q.3. what is bond enthalpy ? write the 2^nd law of thermodynamics ?

Q.5. define entropy ? write criteria of spontaneity w.r.t. entropy ?

Q.6. what is Gibbs free energy ? when a reaction become

 A. spontaneous

B.equillibrium

C.not possible

Q.7.define

1. reversible process

2.state function

3.intensive property.

Q.8.Define rate constant ? for the reaction show that  Kc=[C]^c [D]^d/[A]^a[B]^b

Q.9.for a gaseous reaction show that Kp = Kc(RT)^Δn

Q.10.Write Le Chatelier principle . for the reaction N_2(g) +3H_2(g)↔2NH_3(g)  ΔH=-93.6 KJ

write the direction of reaction if

1.temparature is increased

2.pressure is increased

3.N₂ is removed

Q.11.BCl₃ has zero dipole moment-explain?

Q.12.graphite good conductor of electricity where as diamond-Explain ?

Q.13.what are sillicons ?how they are formed ?

Q.14.What is catenation ? how it is changed in a group ?

q.15.KO₂  is paramagnetic –explain ?

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CLASSES : X,XI,XII

BOARD: CBSE,ICSE,SEBA,AHSEC

SUB: G.Sc, G.Math, English, S.Science
 PHYSICS,CHEMISTRY,BIOLOGY,MATHS.

     

CLASS XI CHEMISTRY IMP QUESTION..SET 1

PART-1

1.Define limiting reagent? Give example.

2.State Hunds rule of maximum multiplicity? Write E.C. of Ca.

3.write Aufbau principle ? arrange in increasing order of energy : 

2s,3d,4f,2p

4.which of the following orbital does not exist ? give reason-: 

2s,2d,3f,4f

5.write Bohrs postulate ? mention any two limitations.

6.Write Rutherfords atomic models drawbacks.

7.write any  two

 A. Heisenburgs uncertainty principle.

B.Paulis exclusion principle. 

C.De Broglie hypothesis

8.define quantum no. ? write significance.

9. which q.n gives shape & orientation of orbital.

10.distinguish orbit & orbital.

11.what is degenerated orbital ? give example.

12.write E.C. of Cu & Cr ? justify your answer.

13state modern periodic law ? write gen E.C of F-block & P-block elements.

14.what is shielding effect ?(screening)

15why Cations are smaller than parent atoms ?

16. Define isoelectron species? Give example.

17.find the iso electronic species  

O^2- , F^-    Na⁺ ,

18.Define Ionisation Enthalpy ? how it is changed across a period ?

19.Define diagonal relationship ? Write the diagonal relationship between Mg & Li ?

20.Explain 1^st ionization enthalpy is less than 2^nd I.E. ?

PHYSICS IMPORTANT QUESTIONS

1..DEEINE INST. VELOCITY & ACCN ?
2..DEFINE CEFFICIENT OF FRICTION & COEFF. OF RESTITUTION
3..DEFINE MOMENTUM. STATE LAW OF CONSERVATION OF MOMENTUM AND PROVE IT.
4..WRITE NEWTONS 2ND LAW. SHOW F= ma..
5..SHOW THAT INST POWER IS DOT PRODUCT OF FORCE AND VELOCITY.
6..STATE KEPLERS LAW OF PLANETARY MOTION.
7.DEFINE ESCAPE VELOCITY. DEDUCE THE EXPRESSION
8.STATE BERNOULIS THEOREM..PROVE IT.
9..DEFINE COEFF OF VISCOSITY..WRITE ITS DIMENSION
10.DEFINE ACCN DUE TO GRAVITY. STATE & EXPLAIN NEWTONS LAW OF GRAVITATION.
11. WRIT NEWTONS LAW OF COOLING
12. DEFINE BEAT. FIND THE EXPRESSION.
13..WRITE LAPLACES CORRECTION OF NEWTONS FORMULA.
14..WHAT IA GEO STATIONARY SATELLITE. WRITE USES.
15..DEFINE ANGLE OF FRICTION & REPOSE.
16..WHAT IS ELASTIC COLLISION..
17..SHOW THE ENERGY OF A FALLING BODY IS CONSERVED..
18..DEFINE TERMINAL VELOCITY.. DEDUCE
19..WRITE HOOKES LAW OF ELASTICITY..DEFINE YOUNG MODULUS OF ELASTICITY.
20.WRITE DIMENSION OF GRAVTATIONAL CONSTANT.
21..FIND THE RELATIONSHIP OF COEFFICIENT OF LINEAR, VOLUMETRIC EXPANSION.
22..STATE PASCALS LAW..
23..FIND THE EXPRESSION FOR ACCN DUE TO GRAVITY AT A HEIGHT h
24..FIND EXPRESSION FOR TIME PERIOD OF A SIMPLE PENDULUM..
25..DEFINE KINETIC ENERGY..DEDUCE THE EXPRESSION FOR I
26..DEFINE CONSERVATIVE & NON CONSERVATIVE FORCE.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................