Question # 1

Which of the following statement regarding catalyst is not true?

Choose an answer

A catalyst remains unchanged in composition and quantity at the end of the reaction

A catalyst can initiate a reaction

A catalyst dose not alter the equilibrium in a reversible reaction

Catalysts are sometimes very specific in respect of reaction

Wholer prepared ures from

Choose an answer

Ammonia

NH₄CNO

NH₃

uric acid

The percentage of nitrogen in urea is

Choose an answer

46

60

70

80

The total number of protons in 10 g of calcium carbonate is (N_o = 6.023 x 10²³)

Choose an answer

1.5057 x 10²⁴

2.0478 x 10²⁴

3.0115 x 10²⁴

4.0956 x 10²⁴

The last orbit of argon would have electrons

Choose an answer

8

18

2

6

Which of the following has greatest reducing power?

Choose an answer

HI

Hbr

HCI

HI

On heating acetaldehyde with ammonical silver nitrate solution we get

Choose an answer

CH₃OH

Silver acetate

HCHO

Silver mirror

Which of the following is a colligative property?

Choose an answer

Melting point

Osmotic pressure

Freezing point

Sublimation temperature

Which has the largest radius?

Choose an answer

CO³⁺

Mn³⁺

Fe³⁺

Cr³⁺

Sulphure dioxide affects

Choose an answer

Cell wall

Plasmodesmata

All membrane systems

Nucleus

An exothermic reaction is one in which the reacting substances

Choose an answer

Have more energy than the products

Have less energy than the products

Have the same energy as the products

Are at a higher temperature than the products

Inter molecular forces in solid hydrogen are

Choose an answer

Covalent forces

Van der Waal forces or London dispersion forces

Hydrogen bonds

All of these.

Which of the following pairs are chemically dissimilar?

Choose an answer

Na and K

Ba and Sr

Zr and Hf

Ca and Zn

Which of the following has linear shape?

Choose an answer

SP

SP²

SP³

None of the above

White lead is

Choose an answer

Basic lead acetate

Acidic lead carbonate

Basic lead carbonate

Basic lead hydroxide

The digestion of fats in the intestines is aided by

Choose an answer

Diffusion

Protection

Peptization

Emulsification

Mild oxidation of glycerol with H₂O₂/FeSO_{4 gives}

Choose an answer

Glyceraldehyde

Dihydroxy acetone

Glycerose

None

Chile salt petre is

Choose an answer

NaNO₃

Na₂SO4

KNO₃

Na₂S₂O₃

The rate at which a substance reacts depends on its

Choose an answer

Atomic weight

Equivalent weight

Molecular weight

Active mass

Which one is the property of an ideal solvent?

Choose an answer

Should be expensive

It should react chemically with the solute

Impurities should crystallize along with the solute

Should be safe to use

Propyne on hydrolysis is presence of H₂SO₄and HgSO_{4 gives}

Choose an answer

Acetaldehyde

Acetone

Formaldehyde

None

Gooch Crucible used to filter the solution of

Choose an answer

H₂SO₄

HCI

KMnO₄

Both B & C

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