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

The chemical formula of magnesite is

Question # 2

Borax is hydrated:

Question # 3

Which property is not present in Al?

Question # 4

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

Question # 5

Which of the following oxides is peroxide?

Question # 6

Oleum is

Question # 7

Red P can be obtained form white P by

Question # 8

The oxide of beryllium is

Question # 9

______ is called milk of magnesia

Question # 10

Basicity of orthoposphoric acid is

Question # 11

All the following decompose easily on heating to give oxygen except

Question # 12

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

Question # 13

Bond angle is minimum for

Question # 14

Copper oxide is dedected by borax bead test with colour:

Question # 15

The chemical formula of Epson salt is

Question # 16

Electron affinity of sulphur is

Question # 17

Alkaline earth metals posses two electrons in their outermost

Question # 18

When SO2is passed through acidified K2Cr2O7solution

Question # 19

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

Question # 20

Which has soapy touch?

Question # 21

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

Question # 22

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

Question # 23

The metal with highest electrical resistance at room temperature is

Question # 24

Which is litharge or massicot?

Question # 25

Which shows maximum catenation property?

Question # 26

Sodium is never found free in nature because of its

Question # 27

The number of electron that are paired in oxygen molecule are

Question # 28

The alkaline earth elements have in their s-orbital

Question # 29

The alkali metals form

Question # 30

Which one of the following is not an alkali metal

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ECAT Chemistry Chapter 14 Important MCQ's

Sr.# Question Answer
1 Sodium is never found free in nature because of its
A. Chemical reactivity
B. Small ionic size
C. Small atomic volume
D. None of these
2 Borax is hydrated:
A. Penta
B. Deca
C. Hepta
D. Octa
3 In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
A. Ionic size
B. Atomic size
C. Ionization potential
D. None of these
4 The oxyacids of phosphorus in which phosphorus has the lowest oxidiation state is
A. Hypophosphorus acid
B. Orthophosphorus acid
C. Pyrophosphorus acid
D. Metaphosphorus acid
5 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
A. Stronger reducing agents
B. More ionic
C. More basic
D. More volatile
6 ______ is used in breathing equipments for mountaineers and in space craft
A. Li2O
B. BeO
C. N2
D. KO2
7 Hybridized in carbon is:
A. sp
B. sp2
C. sp3
D. d2sp
8 NaHCO3is prepared by
A. Down's process
B. Solvay's process
C. Nelson's process
D. None of these
9 ______ reacts with alkalis to give hydrogen
A. Be
B. Mg
C. Ca
D. None
10 The metal with highest electrical resistance at room temperature is
A. Pb
B. Te
C. Po
D. Fe

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