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

Commercial common salt becomes slight damp on storing because

Question # 2

What is chrome yellow?

Question # 3

White P when boiled with strong solution of caustic soda produces

Question # 4

The acid used in lead storage cells is

Question # 5

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

Question # 6

All the following decompose easily on heating to give oxygen except

Question # 7

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

Question # 8

Which is used to remove air bubbles form metals?

Question # 9

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

Question # 10

Lithium reacts with air to form

Question # 11

Which of the following sulphates is not soluble in water

Question # 12

Alkaline earth metals posses two electrons in their outermost

Question # 13

White phosphorus is

Question # 14

Which of the following are electropositive in nature

Question # 15

The ore CaSO42H2O has the general name

Question # 16

What is the formula of asbestos?

Question # 17

Phosphorus pentoxide finds use as

Question # 18

Gypsum is applied to the soil to provide calcium and

Question # 19

Bond angle is minimum for

Question # 20

P2O5is heated with water to give

Question # 21

Which shows maximum catenation property?

Question # 22

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

Question # 23

Which is an essential constituent of chlorophyll

Question # 24

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

Question # 25

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

Question # 26

Which one of the following elements occurs free in nature?

Question # 27

Polyanion formation is maximum in

Question # 28

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

Question # 29

Silicon atom is hybridized:

Question # 30

Which of the following fluorides does not exists?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
2 The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
3 Which metal of Group-II A of the periodic Table, will form the least ionic chloride
A. Be
B. Mg
C. Ca
D. Sr
4 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
5 HNO2acts as an/a
A. Acid
B. Oxidizing agent
C. Reducing agent
D. All the three
6 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
7 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
8 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
9 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
10 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4

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