Question # 1

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

Choose an answer

0

+1

+2

-1

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Choose an answer

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

Choose an answer

Be

Ra

Ba

Rn

Gypsum is applied to the soil to provide calcium and

Choose an answer

Oxygen

Nitrogen

Phosphorous

Sulphur

Which carbonate of alkali metals is insoluble in water

Choose an answer

Na₂CO₃

K₂CO₃

Li₂CO₃

Cs₂CO₃

Each of the following is true of white and red phosphours except that they

Choose an answer

Are both soluble in CS₂

Can be oxidized by heating in air

Consist of the same kind of atoms

Can be converted into one another

Hybridized in oxygen is:

Choose an answer

sp

sp²

sp³

dsp³

Which of the following compounds is explosive in nature?

Choose an answer

Phosphorus trichloride

Nitrogen trichloride

Hyponitrous acid

Nitrosyl chloride

Which one of the following properties is not correct for ozone?

Choose an answer

It oxidizes lead sulphides

It oxidizes potassium iodide

It oxidizes mercury

It cannot act as a bleaching agent

Which is used in navigational equipments?

Choose an answer

B

Be

Mg

Al

BiCl₃on hydrolysis forms a white precipitate of

Choose an answer

Bismuthio acid

Bismuth oxychloride

Bismuth pentachloride

Bismuth hydroxide

When sulphur is boiled with Na₂SO₃solution, the compound formed is

Choose an answer

Sodium sulphides

Sodiums sulphates

Sodium persulphate

Sodium thiosulphate

Copper oxide is dedected by borax bead test with colour:

Choose an answer

Blue

Red

Yellow

Black

What causes nitrogen to be chemically inert?

Choose an answer

Multiple bond formation in the molecule

Absence of bond distance

Short internuclear distance

High bond energy

Down's cell is used to prepare

Choose an answer

Sodium carbonate

Sodium bicarbonate

Sodium metal

Sodium hydroxide

The number of electron that are paired in oxygen molecule are

Choose an answer

16

12

14

7

Which of the following fluorides does not exists?

Choose an answer

NF₅

PF₅

AsF₅

SbF₅

Alkaline earth metals are usually

Choose an answer

Reducing agent

Oxidizing agent

Amphoteric

Acidic

Which salt is used for preserving food

Choose an answer

BaCl₂

CaCl₂

NaCl

Na₂SO₄

Sodium hexametaphophate is known as

Choose an answer

Calgon

Permutite

Natalite

Nitrolim

Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?

Choose an answer

It will react with water to liberate oxygen

Its hydroxide will be a strong alkali in water

Its carbonate will decompose on heating to give carbon dioxide

Its nitrate on heating will give nitrogen dioxide and oxygen

Sodium should be stored in

Choose an answer

Air free from moisture

Air free form carbon dioxide

Under water

Under kerosene oil

Which metal of Group-II A of the periodic Table, will form the least ionic chloride

Choose an answer

Be

Mg

Ca

Sr

Tincal is a mineral of:

Choose an answer

Al

B

Si

C

Calcium carbide reacts with water to produce

Choose an answer

Acetylene

Methane

Ethylene

Ethane

Which of the following is the hardest metal among following

Choose an answer

Li

Na

Rb

K

Which one of the following pentafluorides cannot be formed?

Choose an answer

PF₅

AsF₅

SbF₅

BiF₅

Which of the element is not an alkaline earth metal

Choose an answer

Beryllium

Strontium

Barium

Caesium

______ reacts with alkalis to give hydrogen

Choose an answer

Be

Mg

Ca

None

Alkali metals react violently with halogens to form

Choose an answer

Hydrides

Halides

Anyhydrides

None of these

A compound used as eye wash:

Choose an answer

Borax

Boric acid

Metabolic acid

Pyroboric acid

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

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