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

When a colourless gas is passed through bromine water only decolourisation takes place the gas is

Question # 2

Polyanion formation is maximum in

Question # 3

Gypsum is a common mineral of

Question # 4

Which of the following has highest dipole moment?

Question # 5

Which of the following salt is soluble in water

Question # 6

Sulphuric acid has great affinity for water because

Question # 7

Carbonates of alkali metals dissolves freely in water to form

Question # 8

Where lime is not used

Question # 9

Phosphorus pentoxide finds use as

Question # 10

Oleum is

Question # 11

The metal with highest electrical resistance at room temperature is

Question # 12

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

Question # 13

Which of the following is lighter

Question # 14

Which of the following oxides is peroxide?

Question # 15

White P when boiled with strong solution of caustic soda produces

Question # 16

Which element has highest oxidation potential

Question # 17

Gypsum is applied to the soil to provide calcium and

Question # 18

In the earth crust sodium is

Question # 19

Solvay process is used in the manufacture of

Question # 20

Heavy water is obtained by

Question # 21

NaHCO3is prepared by

Question # 22

Hypo is used in photography for

Question # 23

Ozone is not

Question # 24

NaHCO3is commonly called

Question # 25

Which colour is imparted by sodium

Question # 26

Which carbonate of alkali metals is insoluble in water

Question # 27

Which of the following is the hardest metal among following

Question # 28

Which salt is used for preserving food

Question # 29

Which of the following elements is not present abundantly in earth's crust?

Question # 30

Silicon atom is hybridized:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which one of the following pentafluorides cannot be formed?
A. PF5
B. AsF5
C. SbF5
D. BiF5
2 BiCl3on hydrolysis forms a white precipitate of
A. Bismuthio acid
B. Bismuth oxychloride
C. Bismuth pentachloride
D. Bismuth hydroxide
3 The maximum number of electrons in the outermost shall of s-black elements is
A. One
B. Two
C. Three
D. Four
4 Which element among the following belongs to Group IV-A of the periodic table?
A. Barium
B. Iodine
C. Lead
D. Oxygen
5 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
6 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
7 Dipole moment of CO molecule is:
A. 0.0
B. 1.112 D
C. 0.112 D
D. 2.112 D
8 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
9 Copper oxide is dedected by borax bead test with colour:
A. Blue
B. Red
C. Yellow
D. Black
10 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

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