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

Down's cell is used to prepare

Question # 2

Which of the following elements is most metallic?

Question # 3

Hypo is used in photography for

Question # 4

Which salt is used for preserving food

Question # 5

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 6

Calcium carbide reacts with water to produce

Question # 7

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

Question # 8

The chemical formula of Trona is

Question # 9

Which salt is used for the treatment of hyperacidity in stomach

Question # 10

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 11

Which carbonate of alkali metals is insoluble in water

Question # 12

A compound used as eye wash:

Question # 13

Which is not the form of silica?

Question # 14

CaC2on hydrolysis form

Question # 15

BiCl3on hydrolysis forms a white precipitate of

Question # 16

Sodium should be stored in

Question # 17

Chief ore of aluminium is:

Question # 18

Gypsum is a common mineral of

Question # 19

Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?

Question # 20

Which element forms an iron with charge 3+?

Question # 21

The chemical formula of Epson salt is

Question # 22

Basicity of orthoposphoric acid is

Question # 23

Sodium hexametaphophate is known as

Question # 24

LiOH ______ soluble than NaOH

Question # 25

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 # 26

HNO2acts as an/a

Question # 27

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

Question # 28

Which of the following sulphates has the highest solubility in water

Question # 29

The ore CaSO42H2O has the general name

Question # 30

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Alkaline earth metals posses two electrons in their outermost
A. F-orbital
B. D-orbital
C. S-orbital
D. P-orbital
2 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
3 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
4 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
5 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
6 Which is used to remove air bubbles form metals?
A. B
B. Be
C. Mg
D. Al
7 Red P can be obtained form white P by
A. Heating it with a catalyst in an inert atmosphere
B. Distilling it in an inert atmosphere
C. Dissolving it in CS2and crysllizing
D. Melting it ad pouring the liquid into water
8 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
9 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
10 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil

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