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

All the following decompose easily on heating to give oxygen except

Question # 2

Alkali metals react violently with halogens to form

Question # 3

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

Question # 4

The chemical formula of magnesite is

Question # 5

When SO2is passed through acidified K2Cr2O7solution

Question # 6

The most acidic of the following compounds is

Question # 7

Plaster of pares is obtained by heating

Question # 8

What is the formula of asbestos?

Question # 9

The chemical formula of Trona is

Question # 10

Sodium forms largely

Question # 11

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

Question # 12

Heavy water is obtained by

Question # 13

LiOH ______ soluble than NaOH

Question # 14

Identify the incorrect statement with respect to ozone

Question # 15

The silver bromide in hypo (Na2S2O3) solution is

Question # 16

Which element forms an iron with charge 3+?

Question # 17

Sulphuric acid reacts with PCl5to give

Question # 18

Which of the following elements is most metallic?

Question # 19

Copper oxide is dedected by borax bead test with colour:

Question # 20

Which one of the following is not an alkali metal

Question # 21

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

Question # 22

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 # 23

Hybridized in carbon is:

Question # 24

Commercial common salt becomes slight damp on storing because

Question # 25

NaHCO3is prepared by

Question # 26

Each of the following is true of white and red phosphours except that they

Question # 27

Electron affinity of sulphur is

Question # 28

S-block elements consist of

Question # 29

NaHCO3is commonly called

Question # 30

Sulphuric acid has great affinity for water because

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
2 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
3 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
4 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
5 HNO2acts as an/a
A. Acid
B. Oxidizing agent
C. Reducing agent
D. All the three
6 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
7 Orthophosphoric acid is
A. Monobasic
B. Dibasic
C. Tribasic
D. Tetrabasic
8 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
9 In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
A. Ionic size
B. Atomic size
C. Ionization potential
D. None of these
10 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl

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