Download Q 1: Molecular formula of BHA is

Merit Students SEEE
Time: 1 Hr.
Class: XII - Chemistry
Total Marks: 25
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Q 1: Molecular formula of BHA is
)
a C11H20O2 b C14H14O
Q 6: Which of the following compound having maximum
)
hydrogen bonding?
)
)
c C8H16O2 d C11H16O2
a dimethyl ether b ethyl bromide
)
)
)
)
Q 2: When propene is reacted with HBr in the presence of
c ethyl chloride d ethyl alcohol
peroxide, the species first attack on propene is
)
a
Q 7: Methanal is very reactive than any other carbonyl
b
)
)
)
compounds because of
c
d
a
)
)
)
Q 3: The reaction of t-butyl chloride and sodium ethoxide
c
gives mainly
)
a t-butyl ethyl ether b 2-methyl 1-propene
)
)
Absence of
-hydrogen
b
)
Absence of
-carbon
Absence of alkyl group on carbonyl carbon
d Presence of >C=O group
)
c 2-2-dimethyl butane d isopropyl n-propyl ether
Q 8: Formation of chloroform from ethyl alcohol and
)
bleaching powder does not involve
)
Q 4: From the following which is / are correct
a oxidation b halogenation
statement( s) ?
)
( A) In alcohols - OH group always present at the end of
the chain.
( B) Alcohols may contain one or more
groups.
( C) butane-1-ol has higher boiling point than 2-methyl
)
c reduction d none of the above
)
)
Q 9: Aldehyde and ketone can be distinguished form one
another by
propane -2 - ol
a hydroxylamine b phenylhydrazine
( D) Alcohols are isomers of ethers.
)
a Only A b A, B, C
c aldol condensation d Clemmensen's reduction
)
)
)
)
)
c only B, C, D d All of the above
Q 10: Bimolecular reduction of acetone with magnesium
)
metal gives:
)
Q 5: The
group of methyl alcohol cannot be replaced
a Diacetone amine b Diacetone alcohol
by chlorine by the action of
)
a chlorine b hydrogen chloride
c Iso-propyl alcohol d Pinacol
)
)
)
c phosphorous trichloride d phosphorus pentachloride
)
)
Q 11: Tollen's reagent test for aldehydes, involves the
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a
)
c
)
d
)
oxidation of
group
hydration of
b
)
reduction of
)
group
c
)
group
high reactivity of
-hydrogen
d hydrogen bonding
elimination of
)
group
Q 16: The general formula of a carboxylic ester can be
Q 12: Some statement are given below:
written as
( A) Fatty acids can decompose alkali carbonates
a CnH2nO2 b CnH2nO
( B) Acetic acid on distillation with P2O5 undergoes
)
dehydration
)
c CnH2n+2O2 d CnH2n+1O2
( C) Sodium formate can not give silver mirror test
)
( D) Formic ester can be used to prepare an aldehyde
)
employing Grignard's reagent.
Q 17: Of the following four reactions, formic acid and acetic
Among the above, the correct statements are
acid differ in which respect
a A, B and D only
a
b A and B only
)
)
)
c A, C and D only
b
d all
)
)
)
Q 13: Which one of the following gives a test which is
c
common to an aldehyde?
)
formation of ester with alcohol
reduction of Fehling solution
d blue litmus reaction
a methanoic acid b ethanoic acid
)
replacement of hydrogen by sodium
)
)
c propionic acid d none of these
Q 18: Which of the following statements is not applicable to
)
carboxylic acids ?
)
Q 14: Two molecules of an aldehyde having
a They are polar molecules
-hydrogen
atom condense in presence of aqueous Na2CO3 to give
-
)
hydroxyl aldehyd. The reaction is named as,
b
a Wurtz reaction b Cannizzaro's rection
)
)
c
)
They are weaker acids than mineral acids
They form intermolecular hydrogen bonds
c Aldol condensation d Clasien's condensation
)
)
d They have lower boiling points than the corresponding
)
Q 15: What is the main reason of the fact that carboxylic
) alcohols & aldehydes and ketones
acids can undergo ionization?
Q 19: Which of the following amine does not respond to
a
carbylamine reaction ?
)
absence of
-hydrogen atoms
b resonance of stabilization of
a ethylamine b ( CH3)
)
2
) NH
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c CH3NH2 d phenyl amine
)
)
b
)
Q 20: Phenyl amine is obtained by reduction of which one
)
of the following ?
c
a nitrobenzene b benzonitrile
)
)
)
d
c benzaldoxime d chlorobenzene
)
)
they have same configuration of 5d1, 6s2
they are similar in their properties
they belong to same transition series
)
Q 21: The monovalent RO group is called
a alkyl group b alkoxy group
)
)
c allyl group d all of these
)
)
Q 22: The number of asymmetric carbon atoms in the
molecules of osazone is
a 2 b3
)
)
c 4 d5
)
)
Q 23: Oxidation product of glucose with Br2 water is
a gluconic acid b saccharic acid
)
)
c CO2
)
d
)
bromo derivative of glucose
Q 24: The fibre of dacron blended with cotton fibre is called
a terywool b terycot
)
)
c perlon d semi-synthetic fibre
)
)
Q 25: For lanthanides the most common oxidation state is
+3 because
a they have same configuration of 5d and 6s
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