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

00:00
Question # 1

Aluminium oxide is:

Question # 2

Which one of the following does not belong to alkaline earth metals

Question # 3

Which one of the following elements occurs free in nature?

Question # 4

Calcium carbide reacts with water to produce

Question # 5

Borax is hydrated:

Question # 6

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?

Question # 7

Which is an essential constituent of chlorophyll

Question # 8

The alkali metals form

Question # 9

Which salt is used for the treatment of hyperacidity in stomach

Question # 10

Pb has inert pair of electrons:

Question # 11

Which one of the following is not an alkali metal

Question # 12

Which of the following is acidic?

Question # 13

What is going to replace the petroleum?

Question # 14

Which property is not present in Al?

Question # 15

A compound used as eye wash:

Question # 16

Sodium should be stored in

Question # 17

The chemical formula of chile salt peter is

Question # 18

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

Question # 19

Which of the following oxides is peroxide?

Question # 20

The acid which has a peroxy linkage is

Question # 21

Orthophosphoric acid is

Question # 22

Which of the following compounds is explosive in nature?

Question # 23

Plaster of pares is obtained by heating

Question # 24

All the elements of oxygen family are

Question # 25

Corrundam is ore of:

Question # 26

Sodium hexametaphophate is known as

Question # 27

Copper oxide is dedected by borax bead test with colour:

Question # 28

Sodium forms largely

Question # 29

Which of the following fluorides does not exists?

Question # 30

The alkaline earth elements have in their s-orbital

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?
A. 1s, 2s2, 2p6, 3s2, 3p6, 4s2
B. 1s2 , 2s2 , 2p6 , 3s2, 3p1
C. 1s2, 2s2, 2p6
D. 1s2, 2s2, 2p6, 3s2, 3p3
2 Identify the incorrect statement with respect to ozone
A. Ozone is formed in the upper atmosphere by a photochemical reaction involving dioxygen
B. Ozone is more reactive than diaoxygen
C. Ozone is diamagnetic whereas dioxygen is paramagnetic
D. Ozone protects the earth's inhabitants by absorbing gamma-radiations
3 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
4 Commercial common salt becomes slight damp on storing because
A. Common salt is hygroscope
B. Common salt contains some impurity, which is hygroscopic
C. Salt in efflorescent
D. Salt is crystalline
5 Which of the following salt is used as purgative
A. CaSO4
B. MgSO4
C. BeSO4
D. NaCl
6 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
7 Sodium forms largely
A. Normal oxides
B. Per-oxides
C. Superoxides
D. None of these
8 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
9 In the earth crust sodium is
A. 2.50%
B. 2.30%
C. 2.40%
D. 3.50%
10 The chemical formula of gypsum is
A. CaSO4. 5H2O
B. CaSO4. 4H2O
C. CaSO4. 2H2O
D. None of these

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