Electrochemical process is used to extract_______.

(a)

Iron

(b)

Lead

(c)

Sodium

(d)

silver

Duralumin is an alloy of ______.

(a)

Cu, Mn

(b)

Cu, Al, Mg

(c)

Al, Mn

(d)

Al, Cu, Mn, Mg

Which of the following compounds is colourless?

(a)

Fe³⁺

(b)

Ti⁴⁺

(c)

Co²⁺

(d)

Ni²⁺

Formula of tris(ethane-1, 2-diamine)iron(II)phosphate _______.

(a)

[Fe(CH₃-CH(NH₂)₂)₃](PO₄)₃

(b)

[Fe(H₂N-CH₂-CH₂-NH₂)₃](PO₄)

(c)

[Fe(H₂N-CH₂-CH₂-NH₂)₃](PO₄)₂

(d)

[Fe(H₂N-CH₂-CH₂-NH₂)₃]₃(PO₄)₂

If ‘a’ is the length of the side of the cube, the distance between the body centered atom and one corner atom in the cube will be_________.

(a)

\(\left( \cfrac { 2 }{ \sqrt { 3 } } \right) a\)

(b)

\(\left( \cfrac { 4 }{ \sqrt { 3 } } \right) a\)

(c)

\(\left( \cfrac { \sqrt { 3 } }{ 4 } \right) a\)

(d)

\(\left( \cfrac { \sqrt { 3 } }{ 2 } \right) a\)

If the initial concentration of the reactant is doubled, the time for half reaction is also doubled. Then the order of the reaction is______.

(a)

Zero

(b)

one

(c)

Fraction

(d)

none

Electrolyte	KCl	KNO3	HCl	NaOAC	NaCl
Λ- (Scm2 mol-1)	149.9	145.0	426.2	91.0	126.5

Calculate Λ^o_HoAC using appropriate molar conductances of the electrolytes listed above at infinite dilution in water at 25^oC_______.

(a)

517.2

(b)

552.7

(c)

390.7

(d)

217.5

_____ is an example of O/W type emulsion.

(a)

butter

(b)

cream

(c)

milk

(d)

curd

The function of FeCl₃ in the conversion of Fe(OH)₃ precipitate into a colloid is_________.

(a)

peptising agent

(b)

emulsifying agent

(c)

reducing agent

(d)

precipitating agent

The above reaction is called ______.

(a)

Gattermann reaction

(b)

Williamson ether synthesis

(c)

Swern's reaction

(d)

Riemer tiemann reaction

p-Nitrophenol is having lower pK_a value than phenol because ______.

(a)

phenol is more acidic than p-nitro phenol

(b)

anion of p-nitro phenol is more stabilised by resonance than that of phenol.

(c)

degree of ionisation of p-nitro phenol is less than that of phenol

(d)

anion of p-nitro phenol is less stable than that of phenol.

Alcohols are isomeric with ______.

(a)

aldehyde

(b)

ketones

(c)

ethers

(d)

esters

Which of the following has an offensive odour?

(a)

Phenol

(b)

Benzy lalcohol

(c)

Acrolein

(d)

Benzyl benzoate

The major product obtained when phenol is treated with sodium hydroxide and carbon di oxide is _______.

(a)

Salicyaldehyde

(b)

Salicylic acid

(c)

benzaldehyde

(d)

benzoic acid

Among the following compounds strongest acid is _______.

(a)

HC≡CH

(b)

C₆H₆

(c)

C₂H₆

(d)

CH₃OH

A compound 'X' when mixed with ethanol and a drop of concentrated H₂SO₄ gave a compound with fruity odour. Identify 'X'.

(a)

HCHO

(b)

CH₃OH

(c)

CH₃COOH

(d)

CH₃NH₂

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

(a)

Nucleophilic addition

(b)

Electrophilic substitution

(c)

Freeradical substitution

(d)

Redox

On fusion with KOH benzophenone undergoes __________, and gives potassium benzoate and ________.

(a)

disproportionation reaction, toluene

(b)

condensation reaction, toluene

(c)

disproportionation reaction, benzene

(d)

condensation reaction, benzene

\({ CH }_{ 3 }{ CH }_{ 2 }OH\overset { { K }_{ 2 }{ C }3_{ 3 }{ O }_{ 7 }/{ H }^{ + } }{ \longrightarrow } \underline { 'X' } +{ H }_{ 2 }O'X'\) is _______.

(a)

CH₃CHO

(b)

CH₃COCH₃

(c)

CH₃COOCH₃

(d)

CH₃CN

Which among the following will from significant amount of meta isomer on nitration?

(a)

(b)

(c)

(d)

C₆H₅CHO + Methylamine ⟶ X Y + H₂SO₄-p amino benzene sulphonic acid. Then X and Y are

(a)

Schiff's Base, C₆H₅NH₂

(b)

C₆H₆, C₆H₅CHO

(c)

benzal- N - methyl amine, Toluene

(d)

None of these

The compound which gives an oily nitrosoamine on reaction with nitrous acid at low temperature is ____________

(a)

C₂H₅NH₂

(b)

(CH₃)₂NH

(c)

(CH₃)₃N

(d)

(CH₃)₂CHNH₂

The tertiary nitro compound is ___________

(a)

2-nitropropane

(b)

1-nitropropane

(c)

1-nitro-2, 2-dimethyl propane

(d)

2-nitro-2-methyl propane

Sucrose on hydrolysis gives

(a)

maltose

(b)

glucose and fructose

(c)

2 molecules of maltose

(d)

starch

Name the sugar present in RNA.

(a)

D-ribose

(b)

2'-deoxy -D-ribose

(c)

D-raffinose

(d)

D-glucose