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

A compound used as eye wash:

Question # 2

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

Question # 3

Some of the elements of a period show similar behavior with the elements of next group in next period this is called

Question # 4

All the following decompose easily on heating to give oxygen except

Question # 5

Which one of the following is not an alkali metal

Question # 6

LiOH ______ soluble than NaOH

Question # 7

Chief ore of aluminium is:

Question # 8

Dipole moment of CO molecule is:

Question # 9

______ is called milk of magnesia

Question # 10

Which of the following fluorides does not exists?

Question # 11

The alkali metals form

Question # 12

Pb has inert pair of electrons:

Question # 13

Carbonates of alkali metals dissolves freely in water to form

Question # 14

Plaster of pares is obtained by heating

Question # 15

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

Question # 16

Hypo is used in photography for

Question # 17

The metal with highest electrical resistance at room temperature is

Question # 18

BiCl3on hydrolysis forms a white precipitate of

Question # 19

Phosphine is not obtained by the reaction when

Question # 20

Down's cell is used to prepare

Question # 21

Borax is hydrated:

Question # 22

Basicity of orthoposphoric acid is

Question # 23

The acid used in lead storage cells is

Question # 24

Which salt is used for the treatment of hyperacidity in stomach

Question # 25

Which property is not present in Al?

Question # 26

Which oxide of nitrogen is obtained on heating ammonium nitrate at 250° C?

Question # 27

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

Question # 28

Sodium forms largely

Question # 29

The electrolytic cell used for the production of metallic sodium is known as

Question # 30

Which of the following phosphorus is most reactive?

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following salt is soluble in water
A. CaCO3
B. CaSO4
C. MgSO4
D. BaSO4
2 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur
3 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
4 Density of aluminium is (g cm-3):
A. B
B. Al
C. Si
D. Ge
5 Chile saltpetre has the chemical formula
A. NaNO3
B. KNO3
C. Na2B4O7
D. Na2CO3H2O
6 Pb has inert pair of electrons:
A. One
B. Two
C. Three
D. Four
7 Which of the following compound is industrially prepared by the electrolysis of solution of NaCl
A. Na2CO3
B. NaHCO3
C. NaOH
D. NaOCl
8 The chemical formula of chile salt peter is
A. Na2CO3
B. KNO3
C. NaNO3
D. NaNO2
9 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
10 Marble is chemically
A. CaCl2
B. CaCO3
C. Na2CO3
D. NaHCO3

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