ECAT Pre Engineering Chemistry Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

Try The MCQ's Test For ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

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ECAT Chemistry Chapter 14 Group IIIA & IVA Elements

00:00
Question # 1

Copper oxide is dedected by borax bead test with colour:

Question # 2

Borax is hydrated:

Question # 3

What is chrome yellow?

Question # 4

Plaster of pares is obtained by heating

Question # 5

Electron affinity of sulphur is

Question # 6

The metal with highest electrical resistance at room temperature is

Question # 7

Which is not the form of silica?

Question # 8

The chemical formula of gypsum is

Question # 9

Aluminium oxide is:

Question # 10

White P when boiled with strong solution of caustic soda produces

Question # 11

The chemical formula of Epson salt is

Question # 12

Which of the following elements is most metallic?

Question # 13

Polyanion formation is maximum in

Question # 14

What is going to replace the petroleum?

Question # 15

The oxide of beryllium is

Question # 16

Hybridized in oxygen is:

Question # 17

The number of electron that are paired in oxygen molecule are

Question # 18

The structure of white phosphorus is

Question # 19

When SO2is passed through acidified K2Cr2O7solution

Question # 20

What causes nitrogen to be chemically inert?

Question # 21

Where lime is not used

Question # 22

White phosphorus is

Question # 23

Basicity of orthoposphoric acid is

Question # 24

As a fixing agent in photography, sodium thisoulphate is used for

Question # 25

Which of the following form normal oxide

Question # 26

______ reacts with alkalis to give hydrogen

Question # 27

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?

Question # 28

Which on of the following compounds does not exist?

Question # 29

Calcium carbide reacts with water to produce

Question # 30

Red P can be obtained form white P by

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ECAT Class Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic
2 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these
3 The acid used in lead storage cells is
A. Phosphoric acid
B. Nitric acid
C. Sulphuric acid
D. Hydrochloric acid
4 Lime, calcium oxide, is used in agriculture for
A. Adding ca metal in soil
B. Making soil acidic
C. Neutralizing acidic soil
D. Adding oxygen to soil
5 In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
A. Ionic size
B. Atomic size
C. Ionization potential
D. None of these
6 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
7 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
8 Electron affinity of sulphur is
A. More than O and Se
B. More than O but less than Se
C. Less than O but more than Se
D. Equal to O and Se
9 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
10 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7

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