Question # 1

The angle between the unhybridized 2pz orbital and the three sp2 hybrid orbitals in ethene is

Choose an answer

180°

120°

90°

60°

Fe+2 is the co-factor for

Choose an answer

Chrome oxidase

Glucose-6-phosphatase

Carbonic anhydrase

Hydrolase

In Pakistan consumption per person is:

Choose an answer

8kg

5kg

10kg

6kg

The kinetic energy of 4 moles of nitrogen gas at 127°C is? cals.(R = 2 cal mol^-1 K^-1)

Choose an answer

4400

3200

4800

1524

Hardness of diamond is attributed to the

Choose an answer

strength of the ionic bonds in the structure

three-dimensional network of covalent bonds

absence of valence electrons in carbon atoms

Choose an addition polymer among the following

Choose an answer

Terylone

Nylon 6, 6

Polystyrene

Epoxy resin

If there are weak intermolecular forces in a liquid, it will be

Choose an answer

more volatile

less volatile

more dense

less heavy

Indicate the number of open chain isomers of C6H14

Choose an answer

4

5

6

7

The normal amount of overhead ozone is

Choose an answer

350 DU

450 DU

400 DU

300 DU

Oxides of sulphur react in atmosphere by various reactions to form:

Choose an answer

sulphates

sulphites

sulphides

sulphate aerosols

Areal gas obeying Van der Waal's equation will resemble ideal gas ilf the:

Choose an answer

both a and b are large

both a and b are small

a is small and b is large

a is large and b is small

The rate equation for a reaction is Rate =k[A]. what are unit of K ?

Choose an answer

Mole-1 dm³ S^-1

Mole dm³ S^-1

Moledm³

S^-1

When H₂and I₂are mixed and equilibrium is attained, then

Choose an answer

Amount of HI formed is equal to the amount of H₂dissociated

HI dissociation stops

The reaction stops completely

None of these

The depression of freezing point is directly proportional to

Choose an answer

Mole fraction of the solution

Molarity of the solution

Molality of the solution

Molarity of the solvent

The structure of white phosphorus is

Choose an answer

Square planar

Pyramidal

Tetrahedral

Trigonal planer

A solution of sodium sulphate was electrolysed using some insert electrodes. The products at the electrodes are

Choose an answer

O₂, H₂

O₂, Na

O₂, SO₂

O₂, S₂O₈²

Choose an answer

Condensation

Dehydration

Dehydrogenation

Hydrogenation

If a reactant or product of a reaction absorbs radiation, then physical method for determining the rate of reaction is

Choose an answer

Spectrometry

Refractometry

Conductivity measurement

Optical method

Which of the following does not give iodoform test?

Choose an answer

Ethanol

Ethanal

Acetophenone

Bezophenone

At 25°C, the highest osmotic pressure is exhibited by 0.1 M solution of

Choose an answer

CaCl₂

KCl

Glucose

Urea

The rotation of two carbon atoms joined by double bond would happened only if

Choose an answer

Pi bond is broken

Sigma bond is broken

Both bonds are broken

None of above

Corrosion of iron can be prevented by coating the surface with

Choose an answer

Zn

Sn

Ni

Any of the above

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