In the Ellingham diagram, for the formation of carbon monoxide________.

(a)

\(\left( \cfrac { \Delta { S }^{ 0 } }{ \Delta T } \right) \) is negative

(b)

\(\left( \cfrac { \Delta { G }^{ 0 } }{ \Delta T } \right) \) is positive

(c)

\(\left( \cfrac { \Delta { G }^{ 0 } }{ \Delta T } \right) \) is negative

(d)

initially \(\left( \cfrac { \Delta T }{ \Delta { G }^{ 0 } } \right) \) is positive, after 700^oC,\(\left( \cfrac { \Delta { G }^{ 0 } }{ \Delta T } \right) \) is negative

Which of the following statements is not true?

(a)

on passing H₂S, through acidified K₂Cr₂O₇ solution, a milky colour is observed

(b)

Na₂Cr₂O₇ is preferred over K₂Cr₂O₇ in volumetric analysis

(c)

K₂Cr₂O₇ solution in acidic medium is orange in colour

(d)

K₂Cr₂O₇ solution becomes yellow on increasing the P^H beyond 7

The primary and secondary valencies of [CoCl₂(en)₂]SO₄ are respectively_________.

(a)

4, 6

(b)

2, 4

(c)

4, 4

(d)

6, 4

If ‘a’ stands for the edge length of the cubic system sc, bcc, and fcc. Then the ratio of radii of spheres in these systems will be respectively ________.

(a)

\(\left( \frac { 1 }{ 2 } a;\frac { \sqrt { 3 } }{ 2 } a;\frac { \sqrt { 2 } }{ 2 } a \right) \)

(b)

\(\left( \sqrt { 1a } :\sqrt { 3a } :\sqrt { 2a } \right) \)

(c)

\(\left( \frac { 1 }{ 2 } a:\frac { \sqrt { 3 } }{ 4 } a:\frac { 1 }{ 2\sqrt { 2 } } a \right) \)

(d)

\(\frac { 1 }{ 2 } a:\sqrt { 3 } a:\frac { 1 }{ \sqrt { 2 } } a\)

On which of the following properties does the coagulating power of an ion depend?

(a)

Both magnitude and sign of the charge on the ion.

(b)

Size of the ion alone

(c)

the magnitude of the charge on the ion alone

(d)

the sign of charge on the ion alone.

Williamson synthesis of preparing dimethyl ether is a / an  ______.

(a)

SN¹ reactions

(b)

SN² reaction

(c)

electrophilic addition

(d)

electrophilic substitution

Higher alcohols are not soluble in water because of ______.

(a)

hydrophilic alkyl group

(b)

hydrophobic alkyl groups

(c)

hydrophilic aryl group

(d)

hydrophobic aryl groups

Which of the following produces ether, when heated with cone, H₂SO₄ at 413 K?

(a)

Organic acid

(b)

Aldehyde

(c)

Alcohol

(d)

Ketone

Consider the following reaction   X, Y and Z respectively are ________.

(a)

(b)

C₂H₄, C₂H₅COCI, C₂H₅OH

(c)

(d)

The IUPAC name of  is _______.

(a)

2-methoxy propane

(b)

ethoxy benzene

(c)

2-methoxy-2-methyl propane

(d)

2-methyl-l-butane

The active component of dynamite is _______.

(a)

keiselghur

(b)

nitro glycerine

(c)

nitro benzene

(d)

trinitro toluene

Oxidation of glycerol with bismuth nitrate gives ________.

(a)

meso-oxalic acid

(b)

glyceric acid

(c)

tartronic acid

(d)

both (b) and (c)

The number of possible isomers for molecular formula C₃H₈O is _______.

(a)

2

(b)

3

(c)

7

(d)

4

The IUPAC name of the compound

(a)

4 - methoxy - 2 - nitro benzaldehyde

(b)

4 methoxy - 6 - nitro benzaldehyde

(c)

2 - formyl- 5 - methoxynitrobenzene

(d)

4 formyl - 5 - nitroanisole

When acetaldehyde is heated with Fehling's solution, it gives a precipitate of _______.

(a)

Cu₂O

(b)

CuO

(c)

CuO + Cu₂O

(d)

Cu

Give the stucture of 3-phenyl-2-propanal _______.

(a)

CH₂=CH-CHO

(b)

CH₃CHOH-CH₂CHO

(c)

C₆H₅CH=CH-CHO

(d)

CH₃-CH=CH-CHO

Which is unstable?

(a)

HCOOH

(b)

CH₃CH₂COCl

(c)

CH₃COCl

(d)

HCOCl

Acetone reacting with HCN to form cyanohydrin is ________ type of reaction.

(a)

Nucleophilic addition

(b)

Electrophilic substitution

(c)

Freeradical substitution

(d)

Redox

Benzoin is _________.

(a)

an ∝ -hydroxy aldehyde

(b)

β- hydroxy aldehyde

(c)

β-hydroxy ketone

(d)

α - hydroxy ketone

Aldol is _________.

(a)

2-hydroxy butanol

(b)

3 -hydroxy butanol

(c)

3- hydroxy butanal

(d)

2 -hydroxy butanal

Nitration of nitrobenzene results in

(a)

o-dinitrobenzene

(b)

1,3,5 trinitrobenzene

(c)

m-dinitrobenzene

(d)

p-dinitrobenzene

Which of the following cannot be prepared by Sandmeyer's reaction?

(a)

Iodobenzene

(b)

Fluorobenzene

(c)

both Iodobenzene and Fluorobenzene

(d)

neither Iodobenzene and Fluorobenzene

Which among the following exists as zwitter ion?

(a)

sulphanilic acid

(b)

salicylic acid

(c)

acetanilide

(d)

all the above

Nitromethane condenses with acetaldehyde to give

(a)

nitro propane

(b)

1-nitro-2-propanol

(c)

2-nitro-1-propanol

(d)

3-nitro propanol

The basic character of amines is due to the

(a)

tetrahedral structure

(b)

presence of nitrogen atom

(c)

lone pair of electrons on nitrogen atom

(d)

high electronegativity of nitrogen