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

In the earth crust sodium is

Question # 2

The formula of lime stone is

Question # 3

Down's cell is used to prepare

Question # 4

Density of aluminium is (g cm-3):

Question # 5

The metal with highest electrical resistance at room temperature is

Question # 6

Sodium hexametaphophate is known as

Question # 7

S-block elements consist of

Question # 8

Which is used in navigational equipments?

Question # 9

Which property is not present in Al?

Question # 10

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 11

The chemical formula of chile salt peter is

Question # 12

The number of electron that are paired in oxygen molecule are

Question # 13

Orthophosphoric acid is

Question # 14

Which of the following elements is most metallic?

Question # 15

Which salt is used for the treatment of hyperacidity in stomach

Question # 16

Gypsum is applied to the soil to provide calcium and

Question # 17

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

Question # 18

Which salt is used for preserving food

Question # 19

Which of the following has highest dipole moment?

Question # 20

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

Question # 21

Which of the following sulphates is not soluble in water

Question # 22

White phosphorus is

Question # 23

What is chrome yellow?

Question # 24

Which element form group 15 gives most basic compound with hydrogen?

Question # 25

What is going to replace the petroleum?

Question # 26

The chemical formula of gypsum is

Question # 27

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

Question # 28

Phosphorus pentoxide finds use as

Question # 29

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

Question # 30

The chemical formula of magnesite is

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
2 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
3 White P when boiled with strong solution of caustic soda produces
A. Phosphine
B. Posh acid
C. Phosphorous acid
D. None
4 Red P can be obtained form white P by
A. Heating it with a catalyst in an inert atmosphere
B. Distilling it in an inert atmosphere
C. Dissolving it in CS2and crysllizing
D. Melting it ad pouring the liquid into water
5 Which salt is used for preserving food
A. BaCl2
B. CaCl2
C. NaCl
D. Na2SO4
6 Which will have the maximum value of heat of hydration
A. Na+
B. Cs+
C. Ba+2
D. Mg+2
7 Which of the element is not alkali metal
A. Lithium
B. Rubidium
C. Francium
D. Magnesium
8 Carbonates of alkali metals dissolves freely in water to form
A. Acidic solutions
B. Neutral solution
C. Alkaline solution
D. None of these
9 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4
10 The element caesium bears resemblance with
A. Ca
B. Cr
C. Rubidium
D. None of the above

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