Only A

Only B

Only C

Only A and B

Only B and C

Ascorbic acid, Citric acid and Ascisic acid

BHA, Gallic acid and Lacithin

Sodium benzoate, Sorbic acid and BHA

Gallic acid, Lacithin and Abscisic acid

BHA, BHT and Abscisic acid

Cypermethrin, Aldrin and Methylparathion

Cypermethrin, Permethrin and Methoxychlor

Bifenthrin, Permethrin and dieldrin

Malathion, Parathiona and Pyrethrin

Parathion, Aldrin and Methylparathion

Type I clouds are formed at about -77˚C and contain solid HNO₃.3H₂O.

PSCs do not react with chlorine nitrate and HCl.

A tight whirlpool of wind called polar vortex is formed which surrounds Antarctica.

Type II clouds are formed at about -85˚C and contain some ice.

None of these

CrO₄^-- and MnO₄^-- have tetrahedral structure.

FeSO₄ gives sulphur dioxide on heating.

Transition metals show catalytic properties and form interstitial compounds with noble gases.

Silver is a better conductor of electricity than copper.

Ni⁺² compounds are thermodynamically more stable than Pt⁺².

Only A

Only B

Only C

Only A and B

Only A and C

i - e, ii - b, iii - c, iv - d, v - a

i - a, ii - c, iii - d, iv - b, v - e

i - d, ii - e, iii - c, iv - b, v - a

i - c, ii - e, iii - d, iv - a, v - b

i - c, ii - e, iii - d, iv - b, v - a

Cr⁺², Ti⁺³ and V⁺³

Cu⁺², Sc⁺³ and V⁺²

Sc⁺³, Ti⁺⁴ and Zn⁺²

Fe⁺², Fe⁺³ and Co⁺²

Ti⁺⁴, Ni⁺² and Zn⁺²

C₂H₄, NO₃^- and CO₃^-2

CH₄, CCl₄ and ICl₂^-

SnCl₄, NH₄⁺ and SiBr₄

IF₄⁺, SF₄ and TeCl₄

I₃⁺, I₃^- and H₃O⁺

Each atom in hexagonal close packing has a coordination number 6.

Solids may have tetrahedral or octahedral voids.

The arrangement of atoms in fcc and bcc are the same.

In a body centered cubic, the space occupied by spheres is 68%.

Both 3 and 4.

[Ag(NH₃)₂]⁺ and CO₂ - Linear

BF₃ and CH₃⁺ - Triangular planar

NH₃ and PCl₃ - Pyramidal

SF₄ and CCl₄ - Tetrahedral

XeF₄ and IF₄ - Square planar

Only A

Only B

Only C

Only B and C

None of these

The absolute value of internal energy can not be determined.

The internal energy of one mole of a substance is same at any temperature or pressure.

The measurement of heat change during a reaction by bomb calorimeter is equal to the internal energy change.

Internal energy is an extensive property.

The internal energy of a system can be changed by heating the system or by doing work on it.

Only A

Only B

Only C

Only A and C

Only B and C

The solubility of α-Amino acid is minimum at isoelectric point.

The blood platelets provides immunity against microorganisms.

The bigger molecules are breaking down in smaller molecules during respiration.

Cancer is a congenital disease.

Denaturation involves changes in the primary structure of proteins.