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

Crystalline form of sulphur stable at room temperature is

Question # 2

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

Question # 3

Which of the element is not alkali metal

Question # 4

White phosphorus is

Question # 5

Which one of the following properties is not correct for ozone?

Question # 6

Which of the following sulphates is not soluble in water

Question # 7

Solvay process is used in the manufacture of

Question # 8

Which of the following form normal oxide

Question # 9

Copper oxide is dedected by borax bead test with colour:

Question # 10

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

Question # 11

What is the formula of asbestos?

Question # 12

Alkaline earth metals are usually

Question # 13

Where lime is not used

Question # 14

Sodium hexametaphophate is known as

Question # 15

Commercial common salt becomes slight damp on storing because

Question # 16

Sulphuric acid has great affinity for water because

Question # 17

What causes nitrogen to be chemically inert?

Question # 18

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

Question # 19

Heavy water is obtained by

Question # 20

All the following decompose easily on heating to give oxygen except

Question # 21

Which one of the following is not an alkali metal

Question # 22

Phosphide ion has the electronic structure similar to that of

Question # 23

The chemical formula of chile salt peter is

Question # 24

The structure of white phosphorus is

Question # 25

Which property is not present in Al?

Question # 26

Which has soapy touch?

Question # 27

Which of the following elements is most metallic?

Question # 28

The ore CaSO42H2O has the general name

Question # 29

Alkali metals react violently with halogens to form

Question # 30

The alkali metals form

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
2 Which property is not present in Al?
A. Reacts with acid
B. Reacts with bases
C. Changes litmus paper
D. Changes methyle orange colour
3 The number of electron that are paired in oxygen molecule are
A. 16
B. 12
C. 14
D. 7
4 Which one of the following is not an alkali metal
A. Francium
B. Caesium
C. Rubidium
D. Radium
5 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl
6 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these
7 Which is used in navigational equipments?
A. B
B. Be
C. Mg
D. Al
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 of the following is a tetrabasic acid?
A. ORthophosphoric acid
B. Hyposphosphorus acid
C. Metaphosphoric
D. Pyrophosphoric acid
10 The chemical formula of Epson salt is
A. MgSO4
B. MgCl2
C. MgSO4. 7H2O
D. MgCl2. 7H2O

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