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

NaHCO3is prepared by

Question # 2

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 # 3

Sodium hexametaphophate is known as

Question # 4

Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is

Question # 5

Red P can be obtained form white P by

Question # 6

Which has soapy touch?

Question # 7

All the elements of oxygen family are

Question # 8

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 9

The structure of white phosphorus is

Question # 10

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 11

Chief ore of aluminium is:

Question # 12

What is chrome yellow?

Question # 13

White phosphorus is

Question # 14

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

Question # 15

Which will have the maximum value of heat of hydration

Question # 16

What is the formula of asbestos?

Question # 17

Phosphine is not obtained by the reaction when

Question # 18

Which element forms an iron with charge 3+?

Question # 19

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

Question # 20

Oleum is

Question # 21

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

Question # 22

Which of the following compounds is explosive in nature?

Question # 23

The metal with highest electrical resistance at room temperature is

Question # 24

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

Question # 25

Sulphuric acid has great affinity for water because

Question # 26

Which of the following sulphates has the highest solubility in water

Question # 27

Which of the following salt is soluble in water

Question # 28

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

Question # 29

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

Question # 30

Phosphorus pentoxide finds use as

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sulphuric acid has great affinity for water because
A. It hydrolyses the acid
B. It decomposes the acid
C. Acid forms hydrates with water
D. Acid decomposes water
2 The alkali metals form
A. Ionic bond
B. Covalent bond
C. Co-ordinate bond
D. H-bond
3 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3
4 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
5 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
6 NaHCO3is commonly called
A. Soda ash
B. Baking soda
C. Washing soda
D. None of these
7 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
8 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl
9 Where lime is not used
A. In refining or metals
B. In paper industry
C. In glass industry
D. In the preparation of NaOH
10 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these

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