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

Sulphuric acid reacts with PCl5to give

Question # 2

Which salt is used for preserving food

Question # 3

The chemical formula of chile salt peter is

Question # 4

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

Question # 5

As a fixing agent in photography, sodium thisoulphate is used for

Question # 6

Sodium should be stored in

Question # 7

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

Question # 8

______ is used in breathing equipments for mountaineers and in space craft

Question # 9

Baking powder has which one of the following formula

Question # 10

Hypo is used in photography for

Question # 11

Dipole moment of CO molecule is:

Question # 12

Group VA of the periodic table consists of the elements N, P, As, Sb and Bi, On passing from N to Bi, the oxides of the elements of general formula M2O3become

Question # 13

The chemical formula of magnesite is

Question # 14

The oxide of beryllium is

Question # 15

Alkali metals react violently with halogens to form

Question # 16

BiCl3on hydrolysis forms a white precipitate of

Question # 17

Basicity of orthoposphoric acid is

Question # 18

Alkaline earth metals posses two electrons in their outermost

Question # 19

Which property is not present in Al?

Question # 20

Which has soapy touch?

Question # 21

Which of the following oxides is peroxide?

Question # 22

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

Question # 23

Corrundam is ore of:

Question # 24

Plaster of pares is obtained by heating

Question # 25

P2O5is heated with water to give

Question # 26

Which on of the following compounds does not exist?

Question # 27

Which of the following salt is soluble in water

Question # 28

The metal with highest electrical resistance at room temperature is

Question # 29

Gypsum is applied to the soil to provide calcium and

Question # 30

Which of the following element is most reactive

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 The most acidic of the following compounds is
A. P2O3
B. Sb2O3
C. B2O3
D. As2O3
2 Francium is an element at the bottom of Group I in the Periodic Table. Which one of the following predication is likely to be correct?
A. It will react with water to liberate oxygen
B. Its hydroxide will be a strong alkali in water
C. Its carbonate will decompose on heating to give carbon dioxide
D. Its nitrate on heating will give nitrogen dioxide and oxygen
3 Which of the following is the hardest metal among following
A. Li
B. Na
C. Rb
D. K
4 Which element among the following belongs to Group IV-A of the periodic table?
A. Barium
B. Iodine
C. Lead
D. Oxygen
5 LiOH ______ soluble than NaOH
A. More soluble
B. Less soluble
C. Equally soluble
D. None
6 Which metal is used in the thermit process because of its activity?
A. Iron
B. Copper
C. Alumnium
D. Zinc
7 Polyanion formation is maximum in
A. Nitrogen
B. Oxygen
C. Sulphur
D. Boron
8 Phosphine is not obtained by the reaction when
A. White P is heated with NaOH
B. Red P is heated with NaOH
C. Ca2P2reacts with water
D. PH4l is boiled with water
9 Which of the following are electropositive in nature
A. Alkali metals
B. Alkaline earth metals
C. Halogens
D. Alkali and alkaline earth metals
10 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

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