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

Alkaline earth metals are usually

Question # 2

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

Question # 3

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 4

The silver bromide in hypo (Na2S2O3) solution is

Question # 5

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

Question # 6

Which of the following element is most reactive

Question # 7

Boric acid cannot be used:

Question # 8

Gypsum is a common mineral of

Question # 9

Alkaline earth metals posses two electrons in their outermost

Question # 10

A compound used as eye wash:

Question # 11

Density of aluminium is (g cm-3):

Question # 12

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

Question # 13

Which of the following equations represents the action of heat on NaHCO3

Question # 14

Red P can be obtained form white P by

Question # 15

Sodium forms largely

Question # 16

The electrolytic cell used for the production of metallic sodium is known as

Question # 17

Chemical composition of colemnite is:

Question # 18

Marble is chemically

Question # 19

Heavy water is obtained by

Question # 20

The maximum number of electrons in the outermost shall of s-black elements is

Question # 21

Corrundam is ore of:

Question # 22

In the earth crust sodium is

Question # 23

When SO2is passed through acidified K2Cr2O7solution

Question # 24

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

Question # 25

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

Question # 26

White P when boiled with strong solution of caustic soda produces

Question # 27

Which of the following sulphates is not soluble in water

Question # 28

Tincal is a mineral of:

Question # 29

Which one of the following elements occurs free in nature?

Question # 30

The acid which has a peroxy linkage is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Phosphide ion has the electronic structure similar to that of
A. Nitride ion
B. Fluoride ion
C. Sodium ion
D. Chloride ion
2 What is going to replace the petroleum?
A. Silica
B. Silicates
C. Silicones
D. Silicon
3 Which of the following sulphates is not soluble in water
A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphate
4 Which of the following is the hardest metal among following
A. Li
B. Na
C. Rb
D. K
5 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
6 The ore CaSO42H2O has the general name
A. Gypsum
B. Dolomite
C. Calcite
D. Epsom salt
7 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb
8 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
9 Marble is chemically
A. CaCl2
B. CaCO3
C. Na2CO3
D. NaHCO3
10 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%

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