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 chemical formula of Epson salt is

Question # 2

Oleum is

Question # 3

Identify the incorrect statement with respect to ozone

Question # 4

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

Question # 5

The alkali metals form

Question # 6

When SO2is passed through acidified K2Cr2O7solution

Question # 7

Corrundam is ore of:

Question # 8

The ore CaSO42H2O has the general name

Question # 9

Which will have the maximum value of heat of hydration

Question # 10

Which salt is used for the treatment of hyperacidity in stomach

Question # 11

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 12

Phosphorus pentoxide finds use as

Question # 13

Phosphide ion has the electronic structure similar to that of

Question # 14

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

Question # 15

______ is used in breathing equipments for mountaineers and in space craft

Question # 16

When ammonia is heated with cupric oxide, a molecule of ammonia will

Question # 17

NaHCO3is commonly called

Question # 18

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

Question # 19

Which of the following are electropositive in nature

Question # 20

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

Question # 21

Aluminium oxide is:

Question # 22

HNO2acts as an/a

Question # 23

Lithium reacts with air to form

Question # 24

Sodium is never found free in nature because of its

Question # 25

Which of the following salt is soluble in water

Question # 26

All the elements of oxygen family are

Question # 27

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 # 28

Which one of the following is not an alkali metal

Question # 29

Sodium forms largely

Question # 30

Which of all following compound is not possible

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
2 Sulphuric acid reacts with PCl5to give
A. Thionyl chloride
B. Sulphur monochloride
C. Sulphuryl chloride
D. Sulphur tetrachloride
3 The oxide of beryllium is
A. Acidic
B. Amphoteric
C. Superoxide
D. Basic
4 When sulphur is boiled with Na2SO3solution, the compound formed is
A. Sodium sulphides
B. Sodiums sulphates
C. Sodium persulphate
D. Sodium thiosulphate
5 ______ gives peroxide
A. Li
B. Ba
C. Sr
D. Be
6 Which of the following is acidic?
A. SO3
B. N2O
C. BeO
D. HgO
7 Which of the following is lighter
A. Li
B. k
C. Na
D. Ca
8 Phosphine is not obtained by the reaction when
A. White P is heated with NaOH
B. Red P is heated with NaOH
C. Ca2P2reacts with water
D. PH4l is boiled with water
9 The maximum number of electrons in the outermost shall of s-black elements is
A. One
B. Two
C. Three
D. Four
10 Sodium should be stored in
A. Air free from moisture
B. Air free form carbon dioxide
C. Under water
D. Under kerosene oil

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