Question # 1

Carbonates of alkali metals dissolves freely in water to form

Choose an answer

Acidic solutions

Neutral solution

Alkaline solution

None of these

Which of the following element is most reactive

Choose an answer

Li

Na

K

Cs

Which one of the following elements occurs free in nature?

Choose an answer

N

P

As

Sb

Chemical composition of colemnite is:

Choose an answer

Ca₂B₆O₁₁.5H₂O

CaB₄O₇ .4 H₂O

Na₂B₇O₇. 4 H₂O

CaNaB₅O₉.8H₂O

Which property is not present in Al?

Choose an answer

Reacts with acid

Reacts with bases

Changes litmus paper

Changes methyle orange colour

Which one of the following does not belong to alkaline earth metals

Choose an answer

Be

Ra

Ba

Rn

Hybridized in carbon is:

Choose an answer

sp

sp²

sp³

d²sp

Marble is chemically

Choose an answer

CaCl₂

CaCO₃

Na₂CO₃

NaHCO₃

Electron affinity of sulphur is

Choose an answer

More than O and Se

More than O but less than Se

Less than O but more than Se

Equal to O and Se

Sodium should be stored in

Choose an answer

Air free from moisture

Air free form carbon dioxide

Under water

Under kerosene oil

The chemical formula of chile salt peter is

Choose an answer

Na₂CO₃

KNO₃

NaNO₃

NaNO₂

The oxidation number of each element of group ll-A is

Choose an answer

0

+1

+2

-1

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Choose an answer

SO₂

HBR

HCl

H₂S

Phosphide ion has the electronic structure similar to that of

Choose an answer

Nitride ion

Fluoride ion

Sodium ion

Chloride ion

Orthophosphoric acid is

Choose an answer

Monobasic

Dibasic

Tribasic

Tetrabasic

Down's cell is used to prepare

Choose an answer

Sodium carbonate

Sodium bicarbonate

Sodium metal

Sodium hydroxide

Which colour is imparted by sodium

Choose an answer

Yellow

Violet

Red

Crimson

Which of the following is acidic?

Choose an answer

SO₃

N₂O

BeO

HgO

Corrundam is ore of:

Choose an answer

Li

Be

B

Al

What is going to replace the petroleum?

Choose an answer

Silica

Silicates

Silicones

Silicon

Which of the following form normal oxide

Choose an answer

K

Li

Na

None

More Classes

Other Links

ECAT Chemistry Chapter 14 Group IIIA & IVA Elements Online Test 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