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

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

Question # 2

Where lime is not used

Question # 3

Which on of the following compounds does not exist?

Question # 4

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

Question # 5

LiOH ______ soluble than NaOH

Question # 6

Which will have the maximum value of heat of hydration

Question # 7

Which of the following compounds is explosive in nature?

Question # 8

Borax is hydrated:

Question # 9

P2O5is heated with water to give

Question # 10

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 11

Gypsum is a common mineral of

Question # 12

Solvay process is used in the manufacture of

Question # 13

Which one of the following elements occurs free in nature?

Question # 14

Chile saltpetre has the chemical formula

Question # 15

What is going to replace the petroleum?

Question # 16

The number of electron that are paired in oxygen molecule are

Question # 17

The oxidation number of each element of group l-A is

Question # 18

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

Question # 19

Down's cell is used to prepare

Question # 20

Corrundam is ore of:

Question # 21

The ore CaSO42H2O has the general name

Question # 22

Permonosulphuric acid is known as

Question # 23

S-block elements consist of

Question # 24

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 25

Sulphuric acid reacts with PCl5to give

Question # 26

Which of the following compound is industrially prepared by the electrolysis of solution of NaCl

Question # 27

Which of the following phosphorus is most reactive?

Question # 28

The silver bromide in hypo (Na2S2O3) solution is

Question # 29

Baking powder has which one of the following formula

Question # 30

Which one of the following pentafluorides cannot be formed?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide
2 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
3 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
4 Which of the following is formed by the action of water on sodium peroxide?
A. H2
B. N2
C. O2
D. CO2
5 When SO2is passed through acidified K2Cr2O7solution
A. The solution turns blue
B. The solution is decolourised
C. SO2is reduced
D. Green Cr2(SO4)3is formed
6 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
7 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
8 Which element forms an iron with charge 3+?
A. Berylium
B. Aluminium
C. Carbon
D. Silicon
9 The silver bromide in hypo (Na2S2O3) solution is
A. Soluble
B. Not soluble
C. Precipitated
D. Not effect
10 Silicon atom is hybridized:
A. sp
B. sp2
C. sp3
D. dsp2

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