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

Which of the following sulphates has the highest solubility in water

Question # 2

Which of the element is not alkali metal

Question # 3

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

Question # 4

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

Question # 5

Where lime is not used

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 of the following is a tetrabasic acid?

Question # 8

______ is used in breathing equipments for mountaineers and in space craft

Question # 9

Identify the incorrect statement with respect to ozone

Question # 10

White P when boiled with strong solution of caustic soda produces

Question # 11

Which on of the following compounds does not exist?

Question # 12

Which of the following is lighter

Question # 13

Which element among the following belongs to Group IV-A of the periodic table?

Question # 14

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

Question # 15

In the earth crust sodium is

Question # 16

When sulphur is boiled with Na2SO3solution, the compound formed is

Question # 17

Which of the following oxides is peroxide?

Question # 18

Hybridized in carbon is:

Question # 19

LiOH ______ soluble than NaOH

Question # 20

Which of the element is not an alkaline earth metal

Question # 21

Oleum is

Question # 22

Sulphuric acid has great affinity for water because

Question # 23

The ore CaSO42H2O has the general name

Question # 24

Phosphide ion has the electronic structure similar to that of

Question # 25

The metal with highest electrical resistance at room temperature is

Question # 26

Commercial common salt becomes slight damp on storing because

Question # 27

Sodium hexametaphophate is known as

Question # 28

The silver bromide in hypo (Na2S2O3) solution is

Question # 29

Copper oxide is dedected by borax bead test with colour:

Question # 30

NaHCO3is commonly called

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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 Carbonates of alkali metals dissolves freely in water to form
A. Acidic solutions
B. Neutral solution
C. Alkaline solution
D. None of these
3 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
4 Which one of the following elements occurs free in nature?
A. N
B. P
C. As
D. Sb
5 The electrolytic cell used for the production of metallic sodium is known as
A. Down's cell
B. Solvary's cell
C. Haber's cell
D. None of these
6 As a fixing agent in photography, sodium thisoulphate is used for
A. Dissolving out unreacted silver bromide
B. Converting silver
C. Reducing solubility of AgBr
D. Preventing overdeveloping and fogging
7 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
8 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
9 Which of the following form normal oxide
A. K
B. Li
C. Na
D. None
10 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur

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