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

Oleum is

Question # 2

Phosphide ion has the electronic structure similar to that of

Question # 3

Down's cell is used to prepare

Question # 4

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

Question # 5

The chemical formula of Epson salt is

Question # 6

The chemical formula of Trona is

Question # 7

Hybridized in oxygen is:

Question # 8

What is going to replace the petroleum?

Question # 9

What causes nitrogen to be chemically inert?

Question # 10

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

Question # 11

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

Question # 12

Carbonates of alkali metals dissolves freely in water to form

Question # 13

Which element forms an iron with charge 3+?

Question # 14

Which element has highest oxidation potential

Question # 15

Crystalline form of sulphur stable at room temperature is

Question # 16

Which property is not present in Al?

Question # 17

White P when boiled with strong solution of caustic soda produces

Question # 18

Hybridized in carbon is:

Question # 19

Which has soapy touch?

Question # 20

Red P can be obtained form white P by

Question # 21

Alkali metals react violently with halogens to form

Question # 22

BiCl3on hydrolysis forms a white precipitate of

Question # 23

Baking powder has which one of the following formula

Question # 24

Which is used in navigational equipments?

Question # 25

Sodium should be stored in

Question # 26

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

Question # 27

Which of the following is the hardest metal among following

Question # 28

White phosphorus is

Question # 29

The number of unpaired electrons in the p-subshell of oxygen atom

Question # 30

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

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
2 Tincal is a mineral of:
A. Al
B. B
C. Si
D. C
3 Bond angle is minimum for
A. H2O
B. H2S
C. H2Se
D. H2Te
4 Sodium is manufacture by the electrolysis of fused sodium chloride and not from an aqueous solution of sodium chloride because
A. Sodium chloride does not ionize in the water solution
B. Sodium chloride is not soluble in water
C. Sodium deposited at the cathode may react with water to form sodium hydroxide
D. Electricity does not pass through aqueous NaCl
5 Which of the following form normal oxide
A. K
B. Li
C. Na
D. None
6 Plaster of pares is obtained by heating
A. Gypsum
B. Epsom
C. Lime stone
D. Dolomite
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 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
9 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
10 What is chrome yellow?
A. Pbo
B. Pb2O
C. PbCrO4
D. Pb3O4

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