Carbon forms two oxides, namely carbon monoxide and carbon dioxide. The equivalent mass of which element remains constant ?

(a)

Carbon

(b)

Oxygen

(c)

Both carbon and oxygen

(d)

Neither carbon nor oxygen

Splitting of spectral lines in an electric field is called _____________

(a)

Zeeman effect

(b)

Shielding effect

(c)

Compton effect

(d)

Stark effect

What would be the IUPAC name for an element with atomic number 222?

(a)

bibibiium

(b)

bididium

(c)

didibium

(d)

bibibium

Ionic hydrides are formed by _____________

(a)

halogens

(b)

chalogens

(c)

inert gases

(d)

group one elements

Zeolite used to soften hardness of water is hydrated _____________

(a)

Sodium aluminium silicate

(b)

Calcium aluminium silicate

(c)

Zinc aluminium borate

(d)

Lithium aluminium hydride

Water is a ___________

(a)

basic oxide

(b)

acidic oxide

(c)

amphoteric oxide

(d)

none of these

sodium is stored in _____________

(a)

alcohol

(b)

water

(c)

kerosene

(d)

none of these

The temperatures at which real gases obey the ideal gas laws over a wide range of pressure is called ____________-

(a)

Critical temperature

(b)

Boyle temperature

(c)

Inversion temperature

(d)

Reduced temperature

In a closed room of 1000 m³ a perfume bottle is opened up. The room develops smell. This is due to which property of gases _____________

(a)

Viscosity

(b)

Density

(c)

Diffusion

(d)

None

In an adiabatic expansion of an ideal gas ____________

(a)

w = -ΔU

(b)

w = ΔU + ΔH

(c)

ΔU = O

(d)

w = 0

In an organic compound, phosphorus is estimated as ____________

(a)

Mg₂P₂O₇

(b)

Mg₃(PO₄)₂

(c)

H₃PO₄

(d)

P₂O₅

What is the hybridisation state of benzyl carbonium ion ?

(a)

sp²

(b)

spd²

(c)

sp³

(d)

sp²d

Which of the following species does not acts as a nucleophile ?

(a)

ROH

(b)

ROR

(c)

PCl₃

(d)

BF₃

An alkyl bromide (A) reacts with sodium in ether to form 4, 5– diethyloctane, the compound (A) is _________

(a)

CH₃ (CH₂)₃ Br

(b)

CH₃(CH₂)₅ Br

(c)

CH₃(CH₂)₃ CH(Br)CH₃

(d)

\({ CH }_{ 3 }-{ \left( { CH }_{ 2 } \right) }_{ 2 }-CH\left( Br \right) -\underset { \overset { { | } }{ { CH }_{ 3 } } }{ { CH }_{ 2 } } \)

Which of the following can be used as the halide component for friedal - crafts reaction?

(a)

Chloro benzene

(b)

Bromo benzene

(c)

chloro ethene

(d)

isopropyl chloride

Define equivalent mass.

How many orbitals are possible for n = 4?

Define electro negativity.

Distinguish between diffusion and effusion.

State the first law of thermodynamics.

What is dipole moment ?

Why halogens act as oxidising agents?

Mention the uses of plaster of paris

State Boyle's law.

What are state and path functions? Give two examples

The value of Kc for the reaction
N₂O₂(g) \(\rightleftharpoons \) 2NO₂(g)

Write structural formula for the following compounds
(i) Cyclohexa-1, 4-diene
(ii) Ethynyl cyclohexane.

Explain the diagonal relationship.

Explain preparation of hydrogen using electrolysis.

Give the uses of gypsum.

List the characteristics of internal energy.

Give IUPAC names for the following compounds
CH₃ – CH = CH – CH = CH – C ≡ C – CH₃