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

Basicity of orthoposphoric acid is

Question # 2

Down's cell is used to prepare

Question # 3

Tincal is a mineral of:

Question # 4

What causes nitrogen to be chemically inert?

Question # 5

The metal with highest electrical resistance at room temperature is

Question # 6

NaHCO3is prepared by

Question # 7

S-block elements consist of

Question # 8

NaHCO3is commonly called

Question # 9

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

Question # 10

Which of the following fluorides does not exists?

Question # 11

Orthophosphoric acid is

Question # 12

Which is litharge or massicot?

Question # 13

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

Question # 14

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

Question # 15

Which of the following salt is soluble in water

Question # 16

The silver bromide in hypo (Na2S2O3) solution is

Question # 17

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

Question # 18

______ is called milk of magnesia

Question # 19

The chemical formula of Trona is

Question # 20

Silicon atom is hybridized:

Question # 21

The element which has a simple cubic lattice in solid state is

Question # 22

Which of the following is a tetrabasic acid?

Question # 23

Which of the following form normal oxide

Question # 24

Which of all following compound is not possible

Question # 25

Hypo is used in photography for

Question # 26

Which of the following elements is most metallic?

Question # 27

Which of the following is lighter

Question # 28

The element caesium bears resemblance with

Question # 29

Red P can be obtained form white P by

Question # 30

Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these
2 Borax is a common mineral of alkali metal sodium. Its formula is
A. Na2B4O7
B. Na2,B4O7. 10H2O
C. Na2B3O6. 10H2O
D. Na2B4O7- 5H2O
3 On alkali and alkaline earth metals down the group, there is decreasing trend in
A. m.p.
B. b.p.
C. Ionization potentiall
D. All of these
4 All the elements of oxygen family are
A. Non metals
B. Metalloids
C. Radioactive
D. Polymorphic
5 Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?
A. Nitric oxide
B. Nitrous oxide
C. Nitrogen dioxide
D. Dinitrogen tetraoxide
6 Which element form group 15 gives most basic compound with hydrogen?
A. Nitrogen
B. Bismuth
C. Arsenic
D. Phosphorus
7 Carbonates of alkali metals dissolves freely in water to form
A. Acidic solutions
B. Neutral solution
C. Alkaline solution
D. None of these
8 Polyanion formation is maximum in
A. Nitrogen
B. Oxygen
C. Sulphur
D. Boron
9 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
10 When ammonia is heated with cupric oxide, a molecule of ammonia will
A. Gain 3 electrons
B. Lose 3 electrons
C. Gain 2 electrons
D. Lose 2 electrons

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