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

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Question # 1

Which shows maximum catenation property?

Question # 2

Marble is chemically

Question # 3

Which is used to remove air bubbles form metals?

Question # 4

Lime, calcium oxide, is used in agriculture for

Question # 5

Boric acid cannot be used:

Question # 6

When SO2is passed through acidified K2Cr2O7solution

Question # 7

White P when boiled with strong solution of caustic soda produces

Question # 8

The chemical formula of chile salt peter is

Question # 9

Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because

Question # 10

Sodium hexametaphophate is known as

Question # 11

Which element form group 15 gives most basic compound with hydrogen?

Question # 12

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 # 13

The ore CaSO42H2O has the general name

Question # 14

______ is used in breathing equipments for mountaineers and in space craft

Question # 15

Red P can be obtained form white P by

Question # 16

CaC2on hydrolysis form

Question # 17

The number of electron that are paired in oxygen molecule are

Question # 18

Which of the following is the hardest metal among following

Question # 19

Which carbonate of alkali metals is insoluble in water

Question # 20

The alkali metals form

Question # 21

Carbonates of alkali metals dissolves freely in water to form

Question # 22

Plaster of pares is obtained by heating

Question # 23

The acid which has a peroxy linkage is

Question # 24

Calcium carbide reacts with water to produce

Question # 25

LiOH ______ soluble than NaOH

Question # 26

Which of the following is formed by the action of water on sodium peroxide?

Question # 27

What is the formula of asbestos?

Question # 28

Which is litharge or massicot?

Question # 29

Where lime is not used

Question # 30

On alkali and alkaline earth metals down the group, there is decreasing trend in

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
2 All the following decompose easily on heating to give oxygen except
A. Lead nitrate
B. Potassium chlorate
C. Mercuric oxide
D. Manganese dioxide
3 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
4 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
5 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
6 White phosphorus is
A. A mono atomic gas
B. P4, a tetrahedral solid
C. P8, a crown
D. A linear diatomic molecule
7 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
8 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
9 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
10 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above

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