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

Alkali metals react violently with halogens to form

Question # 2

The most acidic of the following compounds is

Question # 3

Borax is a common mineral of alkali metal sodium. Its formula is

Question # 4

Which of the following sulphates is not soluble in water

Question # 5

Gypsum is applied to the soil to provide calcium and

Question # 6

Red P can be obtained form white P by

Question # 7

Which is an essential constituent of chlorophyll

Question # 8

BiCl3on hydrolysis forms a white precipitate of

Question # 9

On alkali and alkaline earth metals down the group, there is decreasing trend in

Question # 10

Which of the following is not the reactions of lithium

Question # 11

As a fixing agent in photography, sodium thisoulphate is used for

Question # 12

Which of the element is not alkali metal

Question # 13

All the elements of oxygen family are

Question # 14

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

Question # 15

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

Question # 16

Sulphuric acid reacts with PCl5to give

Question # 17

Aluminium oxide is:

Question # 18

Ozone is not

Question # 19

Calcium carbide reacts with water to produce

Question # 20

All the following decompose easily on heating to give oxygen except

Question # 21

In the earth crust sodium is

Question # 22

Which is not the form of silica?

Question # 23

Dipole moment of CO molecule is:

Question # 24

Where lime is not used

Question # 25

Bond angle is minimum for

Question # 26

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

Question # 27

Which of the following is the hardest metal among following

Question # 28

The acid which has a peroxy linkage is

Question # 29

Which colour is imparted by sodium

Question # 30

Which of the following has highest dipole moment?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following is not the reactions of lithium
2 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
3 Permonosulphuric acid is known as
A. Marshall's acid
B. Carlo's acid
C. Sulphuric acid
D. None of these
4 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe
5 Which element has highest oxidation potential
A. Li
B. Be
C. Ba
D. Ra
6 Each of the following is true of white and red phosphours except that they
A. Are both soluble in CS2
B. Can be oxidized by heating in air
C. Consist of the same kind of atoms
D. Can be converted into one another
7 Which of the following equations represents the action of heat on NaHCO3
8 Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because
A. Sulphur is present in the mixture as impurity
B. IV group radicals are precipitated as sulphides
C. Of the oxidation of H2S gas by some acid radicals
D. III group radicals are precipitated as hydroxides
9 Which one of the following does not belong to alkaline earth metals
A. Be
B. Ra
C. Ba
D. Rn
10 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4

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