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

The number of electron that are paired in oxygen molecule are

Question # 2

The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is

Question # 3

Which of the following phosphorus is most reactive?

Question # 4

When SO2is passed through acidified K2Cr2O7solution

Question # 5

Gypsum is a common mineral of

Question # 6

Which of the following is lighter

Question # 7

Which of the element is not an alkaline earth metal

Question # 8

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

Question # 9

Orthophosphoric acid is

Question # 10

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

Question # 11

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

Question # 12

Which has soapy touch?

Question # 13

The acid used in lead storage cells is

Question # 14

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 # 15

S-block elements consist of

Question # 16

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

Question # 17

What causes nitrogen to be chemically inert?

Question # 18

Carbonates of alkali metals dissolves freely in water to form

Question # 19

Density of aluminium is (g cm-3):

Question # 20

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

Question # 21

The chemical formula of magnesite is

Question # 22

Lime, calcium oxide, is used in agriculture for

Question # 23

Bond angle is minimum for

Question # 24

Which is litharge or massicot?

Question # 25

Which of the following statement is not related to Solvay's process of Na2CO3

Question # 26

Boric acid cannot be used:

Question # 27

Al is the most element in earth crust:

Question # 28

Sodium forms largely

Question # 29

Which property is not present in Al?

Question # 30

LiOH ______ soluble than NaOH

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Ozone is not
A. An allotrope
B. A powerful oxidizing agent
C. Paramagnetic
D. A bent molecule
2 Which of the following oxides is peroxide?
A. Na2O2
B. MnO2
C. BaO
D. SO2
3 Phosphide ion has the electronic structure similar to that of
A. Nitride ion
B. Fluoride ion
C. Sodium ion
D. Chloride ion
4 Which of the following has highest dipole moment?
A. NH3
B. PH3
C. AsH3
D. SbH3
5 Which electronic configuration corresponds to an element of Group ||Z-A of the periodic table?
A. 1s, 2s2, 2p6, 3s2, 3p6, 4s2
B. 1s2 , 2s2 , 2p6 , 3s2, 3p1
C. 1s2, 2s2, 2p6
D. 1s2, 2s2, 2p6, 3s2, 3p3
6 Corrundam is ore of:
A. Li
B. Be
C. B
D. Al
7 Gypsum is applied to the soil to provide calcium and
A. Oxygen
B. Nitrogen
C. Phosphorous
D. Sulphur
8 What causes nitrogen to be chemically inert?
A. Multiple bond formation in the molecule
B. Absence of bond distance
C. Short internuclear distance
D. High bond energy
9 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
10 Crystalline form of sulphur stable at room temperature is
A. Rhombic sulphur
B. Monoclinic sulphur
C. Plastic sulphur
D. Prismatic sulphur

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