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

Which of the following is acidic?

Question # 2

Which is not the form of silica?

Question # 3

Which of the following sulphates is not soluble in water

Question # 4

Which element forms an iron with charge 3+?

Question # 5

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

Question # 6

Sodium forms largely

Question # 7

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

Question # 8

In a group IIA from top to bottom as the atomic number increases, there is regular decreases in

Question # 9

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

Question # 10

NaHCO3is prepared by

Question # 11

Which of the following salt is soluble in water

Question # 12

Baking powder has which one of the following formula

Question # 13

Which of the element is not alkali metal

Question # 14

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

Question # 15

Which has soapy touch?

Question # 16

Plaster of pares is obtained by heating

Question # 17

Marble is chemically

Question # 18

Aluminium oxide is:

Question # 19

Polyanion formation is maximum in

Question # 20

Which is an essential constituent of chlorophyll

Question # 21

S-block elements consist of

Question # 22

Sulphuric acid reacts with PCl5to give

Question # 23

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

Question # 24

Which of the following compounds is explosive in nature?

Question # 25

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

Question # 26

When SO2is passed through acidified K2Cr2O7solution

Question # 27

The element caesium bears resemblance with

Question # 28

Sodium hexametaphophate is known as

Question # 29

Phosphine is not obtained by the reaction when

Question # 30

Chemical composition of colemnite is:

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Al is the most element in earth crust:
A. O
B. Si
C. Al
D. Pb
2 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
3 Lime, calcium oxide, is used in agriculture for
A. Adding ca metal in soil
B. Making soil acidic
C. Neutralizing acidic soil
D. Adding oxygen to soil
4 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
5 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
6 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
7 Which of the following sulphates has the highest solubility in water
A. BaSO4
B. CaSO4
C. MgSO4
D. BeSO4
8 Alkaline earth metals are usually
A. Reducing agent
B. Oxidizing agent
C. Amphoteric
D. Acidic
9 Which element has highest oxidation potential
A. Li
B. Be
C. Ba
D. Ra
10 Which salt is used for the treatment of hyperacidity in stomach
A. NaCl
B. KCl
C. NaHCO3
D. Na2CO3

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