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 element forms an iron with charge 3+?

Question # 2

Which one of the following does not belong to alkaline earth metals

Question # 3

Gypsum is applied to the soil to provide calcium and

Question # 4

The chemical formula of chile salt peter is

Question # 5

Which colour is imparted by sodium

Question # 6

Sodium hexametaphophate is known as

Question # 7

Dipole moment of CO molecule is:

Question # 8

Which is litharge or massicot?

Question # 9

Which is used to remove air bubbles form metals?

Question # 10

______ reacts with alkalis to give hydrogen

Question # 11

Which of the following fluorides does not exists?

Question # 12

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 13

Boric acid cannot be used:

Question # 14

The chemical formula of Epson salt is

Question # 15

Chile saltpetre has the chemical formula

Question # 16

Borax is hydrated:

Question # 17

The oxide of beryllium is

Question # 18

Which of the following elements is not present abundantly in earth's crust?

Question # 19

Sodium is never found free in nature because of its

Question # 20

Permonosulphuric acid is known as

Question # 21

The silver bromide in hypo (Na2S2O3) solution is

Question # 22

Which property is not present in Al?

Question # 23

White P when boiled with strong solution of caustic soda produces

Question # 24

Which of the following has highest dipole moment?

Question # 25

Which of the following salt is soluble in water

Question # 26

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

Question # 27

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

Question # 28

What is chrome yellow?

Question # 29

Corrundam is ore of:

Question # 30

Which metal is used in the thermit process because of its activity?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Boric acid cannot be used:
A. An antiseptic in medicine
B. For washing eyes
C. In soda bottles
D. For enamels and glazes
2 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
3 The oxidation number of each element of group l-A is
A. 0
B. +1
C. +2
D. -1
4 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
5 When ammonia is heated with cupric oxide, a molecule of ammonia will
A. Gain 3 electrons
B. Lose 3 electrons
C. Gain 2 electrons
D. Lose 2 electrons
6 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
7 Which carbonate of alkali metals is insoluble in water
A. Na2CO3
B. K2CO3
C. Li2CO3
D. Cs2CO3
8 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al
9 Phosphorus pentoxide finds use as
A. An oxidizing agent
B. A reducing agent
C. A bleaching agent
D. A dehydrating agent
10 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate

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