Organic Chemistry MCQs

Organic Chemistry MCQs

1) In the primary alkyl halides, hydrogen is bonded to that carbon atom which is further attached to carbon atoms?
a) 1
b) 2
c) 3
d) none

2) Which of the following is least reactive?
a)H2O
b)ether
c)alcohol
d)H2SO4

3)which of the following is the formula of methylene chloride?
a)CH2Cl2
b)CH3Cl
c)CHCl3
d)CCl4

4) The planer shape is made in which type of hybridization?
a)SP3
b)SP2
c)SP
d)none

5)which catalyst is used to convert carboxylic acid into alcohol?
a)NaBH4
b)LiAlH4
c)H2SO4
d)none

SOLVED BIOLOGY MCAT MCQS

6)methylated alcohol contains:
a)95% alcohol
b)80% alcohol
c)90%alcohal
d)none

7) which is a synthetic polymer?
a)polystyrene
b)PVC
c)polyethylene
d)none

8)the reactivity order of alkyl halides for a particular alkyl group is:
a)F>Cl>Br>I
b)Cl>Br>F>I
c)I>Br>Cl>F
d)Br>I>Cl>F

9 )which has the maximum boiling point?
a)ethanol
b)propanal
c)methanol
d)2-hexanone

10)which one is artificial polymer?
a)lipids
b)starch
c)cellulose
d)polyethylene

11) which of the following is not a Nucleophile?
a)H2O
b)H2S
c)BF3
d)NH3

CHEMISTRY MCQS

12) formula of methylene chloride is:
a)CH2Cl2
b)CH3Cl
c)CHCl3
d)CCl4

13) universal solvent is”
a)H2O
b)ether
c)alcohol
d)H2SO4

14)which of the following is least reactive?
a)ester
b)ether
c)aldehydes
d)ketones

15)when the molecule of H2 is removed from benzene , then it turns into:
a)cyclo-hexane
b)toluene
c)phenol
d)formaldehyde

SOME IMPORTANT IDIOMS

16)which of the following compound can directly be formed from acetic acid?
a)acetamide
b)acetic anhydride
c)acetyl chloride
d)both b &c

17)which of the following reagent will react with both aldehydes and ketones?
a)Grignard reagent
b)Tollen’s  reagent
c)Fehling’s reagent
d)Benedict’s reagent

18) acetylene under pressure over an organo-nickle catalyst at 70 centigrade converts into
a) benzene
b) toluene
c) benzoic acid
d) phenol

19) the mode of hybridization in alkane is _________ and three hybrid orbits are formed
a) sp3
b) sp2
c) sp
d) sp4

20) which of the following agent oxidizes the aldehydes to carboxylic acids
a) alcohol
b) Grignard reagent
c) tollens reagent
d) both a and c

21) the IUPAC name of formic acid is
a) methanoic
b) ethanoic
c) propanoic
d) pentanoic

22) the enzyme which is used for treatment of blood cancer in children is
a) L-asparaginase
b) alkaline phosphatase
c) thrombin
d) LHD-1

23) which of the following test is not given by aldehydes
a) sodium nitroprusside
b) benedict solution
c) fehling solution
d) tollen’s test

24) sodium reacts with alkyl hallides in ether to form alkanes , the reaction is known as
a) wurtz synthesis
b) Grignard reagent
c) nucleophilic substitution
d) none

25) which of the following is the co-factor of carbonic anhydrase
a) Fe+2
b) Zn+2
c) Mg+2
d) Co+2

26) which of them is most reactive
a) alkane
b) alkene
c) alkyne
d) benzene

27) which electrophile is used in the nitration of benzene
a) HNO3
b) NO2+
c) NO3
d) NO2

28) which compound has maximum repulsion with water?
a) C6H6
b) CH3CH2CH2OH
C) C2H5OH
D) CH3OCH3

29) rectified spirit contains alcohol about
a)  98%
b) 90%
c) 95%
d) 80%

30) which acid is used in the manufacture of synthetic fiber
a) formic acid
b) oxalic acid
c) carbonic acid
d) acetic acid

31) which one of the following polymer is addition polymer?
a) polystyrene
b) polyethylene
c) PVC
d) all

32) which one is a water soluble vitamin
a) niacin
b) riboflavin
c) trypsin
d) ascorbic acid

33) in primary alcohols carbon atom is attached to carbon attached to ____ carboxyl group?
a) 1
b) 2
c) 3
d) none

BIOLOGY MCQS FOR MCAT

34) which one of the following is nucleophile
a) H2O
B) NH3
C) BF3
D) HCl

35) ethers show phenomenon of
a) position isomerism
b) metamerism
c) functional group isomerism
d) tautemerism