Question # 1

Water is purified by:

Choose an answer

Filtration

aeration

coagualation

All of these

The hydrocarbon with maximum B.P is

Choose an answer

CH4

C6H14

C4H10

C2H6

Which of the following liquid has higher boiling point?

Choose an answer

HCl

HBr

H₂O

Br₂

How should the conditions be changed to prevent the volume of a given gas from expanding when its mass in increased

Choose an answer

temperature is lowered and pressure is increased

temperature is increased and pressured is lowered

temperature and pressure both are lowered

temperature and pressure both are increased

Helical structure of proteins is stabilized by

Choose an answer

Peptide bond

Dipeptide bond

Van der Wall's forces

Hydrogen bonding

Lead pollution is mainly due to

Choose an answer

Metallic pollution

Space pollution

Acid rain

Cd pollution

The change in enthalpy of a system when one mole of the substance is completely burnt in excess of air or oxygen is called

Choose an answer

Heat of reaction

Heat of formation

Heat of atomization

Heat of combustion

The respiration process taking place in animals depends upon a difference in:

Choose an answer

vapour pressure

osmotic pressure

partial pressure

atmospheric pressure

The reaction that generates an ionic bond is

Choose an answer

Halogenation of ethene

polymerization of ethene

Hydrogenation of ethyne

Reaction of ethyne withs sodamide

If R, T, M, V and P are gas constant, temperature, molar mass, volume and pressure then density is given by:

Choose an answer

M/V

RT/M

PM/RT

V/M

Which set of elements is good loser of electrons

Choose an answer

F2. Cl2, Br2

N, P. As

O. S, Se

Li, Na, K

The most acidic of the following compounds is

Choose an answer

P₂O₃

Sb₂O₃

B₂O₃

As₂O₃

The art of electroplating was given by

Choose an answer

Faraday

Edison

Thomas Gradam

Brugan

The clotting time of blood is increased due to the deficiency of

Choose an answer

Vitamin A

Vitamin K

Vitamin D

Vitamin C

Which gasses are produced from landfills

Choose an answer

NH₃

H₂S

N₂

All of these

Which inorganic precipitate acts as semipermeable membrane?

Choose an answer

Calcium sulphate

Barium oxalate

Nickel phosphate

Copper ferrocyanide

Choose an answer

Forward

Backward

Already in equilibrium

K_cis never less

Acetamide and NaOBr/OH^-produce

Choose an answer

Ethanamine

Methanamide

CH₃CN

NH₃

Reduction with aluminium isopropoxide in excess of Isopropyl alcohol is called Meerwein Ponndroff-Verley reduction (MPV). What will be the final product when cyclohex-2-enone is selectively reduces in MPV reaction?

Choose an answer

Cyclohexanol

Cyclohex-2-enol

Cyclohexanone

Benzene

Which of the following statements is no correct regarding bonding molecular orbitals?

Choose an answer

Bonding molecular orbitals possess ls energy than atomic orbitals from which they are formed.

Bonding molecular orbitals have low electron density between the two nuclei.

Every electron in bonding molecular orbitals contributes to the attraction b.w atoms.

Bonding molecular orbitals are formed when the electron waves undergo constructive interference.

Which of the following fluorides does not exists?

Choose an answer

NF₅

PF₅

AsF₅

SbF₅

S-block elements consist of

Choose an answer

Alkali metals

Alkaline earth metals

Alkali and alkaline earth metals

None of these

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

Choose an answer

Choose an answer