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

Gypsum is applied to the soil to provide calcium and

Question # 2

Al is the most element in earth crust:

Question # 3

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

Question # 4

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

Question # 5

Which is an essential constituent of chlorophyll

Question # 6

Permonosulphuric acid is known as

Question # 7

S-block elements consist of

Question # 8

Baking powder has which one of the following formula

Question # 9

Borax is hydrated:

Question # 10

Which salt is used for preserving food

Question # 11

Crystalline form of sulphur stable at room temperature is

Question # 12

The acid used in lead storage cells is

Question # 13

The chemical formula of Epson salt is

Question # 14

Oleum is

Question # 15

Sodium is never found free in nature because of its

Question # 16

Which salt is used for the treatment of hyperacidity in stomach

Question # 17

Which will have the maximum value of heat of hydration

Question # 18

Hybridized in carbon is:

Question # 19

Which one of the following is not an alkali metal

Question # 20

BiCl3on hydrolysis forms a white precipitate of

Question # 21

Identify the incorrect statement with respect to ozone

Question # 22

Which of the following element is most reactive

Question # 23

Which of the following salt is soluble in water

Question # 24

Dipole moment of CO molecule is:

Question # 25

When SO2is passed through acidified K2Cr2O7solution

Question # 26

Gypsum is a common mineral of

Question # 27

Which colour is imparted by sodium

Question # 28

Sometimes a yellow turbidity appears while passing H2S gas even in the absence of II group radicals. This is because

Question # 29

Bond angle is minimum for

Question # 30

Phosphine is not obtained by the reaction when

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Which of the following elements is not present abundantly in earth's crust?
A. Silicon
B. Aluminium
C. Sodium
D. Oxygen
2 The alkaline earth elements have in their s-orbital
A. One electron
B. Two electron
C. No electron
D. Three electron
3 ______ is called milk of magnesia
A. NaOH
B. KOH
C. LiOH
D. None
4 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
5 Hypo is used in photography for
A. Developing picture
B. Picture printed
C. The colour of picture
D. The fixation of picture
6 Oleum is
A. Castor oil
B. Oil of vitriol
C. Fuming of H2SO4
D. None of them
7 Basicity of orthoposphoric acid is
A. 2
B. 3
C. 4
D. 5
8 S-block elements consist of
A. Alkali metals
B. Alkaline earth metals
C. Alkali and alkaline earth metals
D. None of these
9 When a colourless gas is passed through bromine water only decolourisation takes place the gas is
A. SO2
B. HBR
C. HCl
D. H2S
10 Lithium reacts with air to form
A. Peroxide
B. Normal oxide
C. Superoxide
D. None of these

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