In the hydrocarbo \(\overset { 7 }{ { CH }_{ 3 } } -\overset { 6 }{ { CH }_{ 2 } } -\overset { 5 }{ CH } =\overset { 4 }{ CH } -\overset { 3 }{ { CH }_{ 2 } } -\overset { 2 }{ C } =\overset { 1 }{ CH } \) the state of hybridisation of carbon 1,2,3,4 and 7 are in the following sequence.

(a)

sp, sp, sp³, sp², sp³

(b)

sp², sp, sp³, sp², sp³

(c)

sp, sp, sp², sp, sp³

(d)

none of these

Which one of the following names does not fit a real name?

(a)

3 – Methyl –3–hexanone

(b)

4–Methyl –3– hexanone

(c)

3– Methyl –3– hexanol

(d)

2– Methyl cyclo hexanone

IUPAC name of \({ CH }_{ 3 }-\overset { \underset { | }{ H } }{ \underset { \overset { | }{ { C }_{ 2 }{ H }_{ 5 } } }{ C } } -\overset { \underset { | }{ { C }_{ 4 }{ H }_{ 9 } } }{ \underset { \overset { | }{ { CH }_{ 3 } } }{ C } } -{ CH }_{ 3 }\) is ________

(a)

3, 4, 4 – Trimethylheptane

(b)

2 – Ethyl –3, 3– dimethyl heptane

(c)

3, 4, 4 – Trimethyloctane

(d)

2 – Butyl -2 –methyl – 3 – ethyl-butane

The IUPAC name of the compound  is ____________

(a)

3 – Ethyl -2– hexene

(b)

3 – Propyl -3– hexene

(c)

4 – Ethyl – 4 – hexene

(d)

3 – Propyl -2-hexene

The IUPAC name of  is ____________

(a)

2 – Bromo -3 – methyl butanoic acid

(b)

2 - methyl - 3- bromobutanoic acid

(c)

3 - Bromo - 2 - methylbutanoic acid

(d)

3 - Bromo - 2, 3 - dimethyl propanoic acid

The isomer of ethanol is ____________

(a)

acetaldehyde

(b)

dimethylether

(c)

acetone

(d)

methyl carbinol

Tetravalency of carbon is possible in the case of ________

(a)

sp³-hybridisation

(b)

sp²-hybridisation

(c)

sp-hybridisation

(d)

All of these

Which of the following compound has maximum number of primary H-atoms?

(a)

CH₄

(b)

CH₃-CH₂-CH₃

(c)

\(\underset { \underset { { CH }_{ 3 } }{ | } }{ { H }_{ 5 }{ C }_{ 2 }-{ CH }-{ CH }_{ 3 } } \)

(d)

C (CH₃)₄

The compound which has one isopropyl group is _________

(a)

2,2,3,3 - Tetramethyl pentane

(b)

2,2 - Dimethyl pentane

(c)

2,2,3 - Trimethyl pentane

(d)

2 - Methylpentane

Structure of the compound whose IUPAC name is 3-ethyl-2-hydroxy-4-methyl hex-3-en-5-ynoic acid is __________

(a)

(b)

(c)

(d)

Which one of the following pairs represents stereoisomerism?

(a)

Chain isomerism and rotational isomerism.

(b)

Structural isomerism and geometrical isomerism

(c)

Linkage isomerism and geometrical isomerism.

(d)

Optical isomerism and geometrical isomerism

Purification of two miscible liqulds possessing very close boiling points can be separated using _________

(a)

Fractional distillation

(b)

Sublimation

(c)

Simple distillation

(d)

Steam distillation

The principle involved in paper chromatography is _________

(a)

partition

(b)

sublimation

(c)

adsorption

(d)

filtration

Which of the following is not an organic compound?

(a)

DNA

(b)

Lipid

(c)

Glycogen

(d)

Bronze

Which one of the following is the functional group of ketone?

(a)

-CHO

(b)

\(-\underset { \overset { || }{ O } }{ C } -\)

(c)

-O-

(d)

-OH

Which one of the following is commonly called mesitylene?

(a)

(b)

(c)

(d)

Which one of the following is called ferric ferrocyanide?

(a)

Na₄[Fe(CN)₆]

(b)

Na₄[Fe(CN)₆]₃

(c)

Fe₄[Fe(CN)₆]

(d)

Fe₄[Fe(CN)₆]₃

Which one of the following is the formula of sodium nitroprusside?

(a)

Na₄[Fe(CN)₅NO₅

(b)

Na₄[Fe(CN)₅SON]

(c)

Na₄[Fe(CN)₆]

(d)

Fe₄[Fe(CN)₆]₃

Which of the following will absorb CO₂?

(a)

Cone. H₂SO₄

(b)

KOH

(c)

HCl

(d)

Copper

Which method is used to estimate sulphur?

(a)

Lassaigne's test

(b)

Oxide test

(c)

Carius method

(d)

Kjedahl's method