Question # 1

Gooch crucible is used for the filtration of precipitates having

Choose an answer

High solubility

High concentration

High ignition temperature

Low temperature

The number of oxygen atoms in 4.4 g of CO₂ is approximately

Choose an answer

1.2 x 10²³

6 x 10²²

6 x 10²³

12 x 10²³

Red lead is

Choose an answer

PbO

Pb₃O₄

PbO₂

Pb₄O₃

1 mole of CH₄ contains

Choose an answer

6.02 x 10²³ atoms of H

4 g-atom of hydrogen

1.81 x 1023 molecules of CH₄

3.0 g of carbon

Which of the following fluorides does not exist?

Choose an answer

NF₅

PF₅

AsF₅

SbF₅

Bell metal is an alloy of

Choose an answer

Cu,Zn,and Sn

Cu,Zn and Ni

Cu and Zn

Cu and Sn

Benzene + Ozone → Y. in this sequence Y is

Choose an answer

Benzene monoozonide

Benzene diozonide

Benzene triozonide

Succinic acid

Which of the following mineral does not contain AI?

Choose an answer

Cryolite

Mica

Feldspar

Fluorspar

In the equilibrium

N₂ + 3H₂ - 2NH₃ + 22 kcal the formation of ammonia is favoured by

Choose an answer

Increasing the pressure

Increasing the temperature

Decreasing the pressure

Adding ammonia

Which one is primary alcohol?

Choose an answer

Buten-2-oI

Propan-2-oI

Butane-1-oI

2,3-Dimethylhexane-4-oI

The valence orbital configuration of an element with atomic number 23 is

Choose an answer

3d⁵

3d³, 4s²

3d³,4s¹,4p¹

3d²,4s²,4p¹

The rate at which a substance reacts depends on its

Choose an answer

Atomic weight

Equivalent weight

Molecular weight

Active mass

Which of the following imparts violet colouration to non-luiminous flame of Bunsen burner?

Choose an answer

NaCl₂

BaCl₂

CaCl₂

KCl

Which of the following is monoatomic?

Choose an answer

Oxygen

Neon

Fluorine

Nitrogen.

In a crystal a≠b≠c, a =γ= 90° andβ≠90°. It is

Choose an answer

Monoclinic

Rhombic

Trigonal

Tetragonal

The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is

Choose an answer

22.4 litres

11.2 litres

1 litre

2.24 litres

Water (H_2O) is liquid while hydrogen sulphide (H₂S) is a gas because

Choose an answer

Water has higher molecular weight

Hydrogen sulphide is a weak acid

Sulphure has high electronegativity than oxygen

Water molecules associate through hydrogen

The last orbit of argon would have electrons

Choose an answer

8

18

2

6

The chemical composition of white lead is

Choose an answer

Na₂CO₃

Pb₃O₄

Pb(OH)₂.2PbCO₃

PbO

Isopropyl alcohol on oxidation forms

Choose an answer

Acetone

Ether

Ethylene

Acetaldehyde

Which one of the halogen acid is a liquid?

Choose an answer

HF

HCl

HBr

Hl

For most of the chemical reactions the rate of reaction

Choose an answer

Increase as the reaction proceeds

Decrease as the reaction proceeds

May increase or decrease during the reaction

Remains constant as the reaction proceeds

More Classes

Other Links

Chemistry General Science Test Hard Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer