Question # 1

If 250 cm³of hydrogen gas is cooled from 127°C to -73°C at constant pressure then new volume of gas is ______ dm³

Choose an answer

0.25

0.375

0.125

0.0625

ln ethyl alcohol, the bond that undergoes heterolytic cleavage most readily is

Choose an answer

C-C

C-O

C-H

O-H

Stalagmometer is used to measure

Choose an answer

the resistance to flow of a liquid

capillary action of a liquid

Meniscus of the liquid

surface tension of the liquid

The solubility of A2B3 is X mole dm-3. Its Ksp is?

Choose an answer

6X(5)

36X(5)

64X(5)

108X(5)

Region of earth capable of supporting life is called:

Choose an answer

Atmosphere

Hydrosphere

Lithosphere

All of these

The attractive forces between molecules of a gas and their sizes can be ignored at

Choose an answer

high pressure

low temperature

low temperature and high pressure

low pressure and high temperature

Under which condition CO has the maximum molar volume

Choose an answer

high T and P

Low T and High p

high T and low P

Low T and low P

Always carboxylic acid produced will have number of carbon atoms from carbon atom in alkyl nitriles:

Choose an answer

One more

Two more

Equal & same

One less

The boiling point of Kr is higher (-152.23°C) than that of helium (-268.6°C) due to

Choose an answer

Kr forms greater number of covalent bonds

greater polarizability of Kr than He

Kr has lowest freezing point

Kr is in liquid state at ordinary temperature

Polypeptides are formed from amino acids by

Choose an answer

Oxidation

Addition

Condensation

Reduction

The amount of energy required to remove an electron from an atom of an element in the gaseous state is called

Choose an answer

Electron affinity

Electronegatively

Ionization energy

None of these

Hydrocarbons are divided into aliphatic, alicyclic and aromatic which structure among the following show an alicyclic hydrocarbon

Choose an answer

A polymer may be

Choose an answer

Linear

Branched

Cross linked

All of these

The development of industries was a direct result of which major factor

Choose an answer

Population

Living standards

Depletion of resources

All of these

Which element has highest oxidation potential

Choose an answer

Li

Be

Ba

Ra

Ground and surface waters are contaminated and become polluted due to the human activity. Which human activity will bot cause water pollution

Choose an answer

Live stock waste

Agricultural pesticides

Oil breaks and spills

All of the above

The tendency of atoms to attain a maximum of eight electrons in the valence shell is known as:

Choose an answer

Duplet rule.

Triad rule.

Octet rule.

Tetrade rule.

Energy of electron in an orbit according to Bohr theory is negative due to

Choose an answer

Repulsion of electrons in the same orb

At infinity energy is zero ad a traction towards nucleus decreases energy

Electron has negative charge

Product of positive nuclear charge and negative charge is negative

Atomic number of Al is 13. When it forms ionic bond with oxygen the number of electrons lost by 1 Al atom is

Choose an answer

1

2

3

4

10g Of NaOH Has Been Dissolved Perdm³of solution. The morality of solution is :

Choose an answer

0.025 M

1.5 M

0.1 M

.25 M

More Classes

Other Links

Chemistry General Science Test Medium 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