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

Heavy water is obtained by

Question # 2

Which of the following form normal oxide

Question # 3

BiCl3on hydrolysis forms a white precipitate of

Question # 4

Which of the following is lighter

Question # 5

The chemical formula of gypsum is

Question # 6

Sodium should be stored in

Question # 7

Which of the following sulphates is not soluble in water

Question # 8

Which element forms an iron with charge 3+?

Question # 9

The chemical formula of magnesite is

Question # 10

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

Question # 11

LiOH ______ soluble than NaOH

Question # 12

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

Question # 13

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 14

Silicon atom is hybridized:

Question # 15

Density of aluminium is (g cm-3):

Question # 16

Ozone is not

Question # 17

When SO2is passed through acidified K2Cr2O7solution

Question # 18

A compound used as eye wash:

Question # 19

Sodium forms largely

Question # 20

Down's cell is used to prepare

Question # 21

HNO2acts as an/a

Question # 22

Sodium hexametaphophate is known as

Question # 23

______ gives peroxide

Question # 24

Which one of the following elements occurs free in nature?

Question # 25

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 26

Which of the element is not an alkaline earth metal

Question # 27

Alkaline earth metals are usually

Question # 28

Which of the following has highest dipole moment?

Question # 29

Commercial common salt becomes slight damp on storing because

Question # 30

The chemical formula of Epson salt is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
2 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
3 Which of the following phosphorus is most reactive?
A. Red phosphorus
B. White phosphorus
C. Scrlet phosphorus
D. Violet phosphorous
4 Which of the following equations represents the action of heat on NaHCO3
5 Chemical composition of colemnite is:
A. Ca2B6O11.5H2O
B. CaB4O7 .4 H2O
C. Na2B7O7. 4 H2O
D. CaNaB5O9.8H2O
6 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
7 The formula of lime stone is
A. CaCl2
B. MgCO3
C. Na2CO3
D. CaCO3
8 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
9 The structure of white phosphorus is
A. Square planar
B. Pyramidal
C. Tetrahedral
D. Trigonal planer
10 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb

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