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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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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 14 Group IIIA & IVA Elements
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Question # 1
Which one of the following elements occurs free in nature?
Question # 2
The ore CaSO42H2O has the general name
Question # 3
The acid which has a peroxy linkage is
Question # 4
Which of the element is not an alkaline earth metal
Question # 5
Potassium superoxide has a use in breathing equipment in space crafts. The balanced equation for the reaction is
Question # 6
Which of the following salt is soluble in water
Question # 7
The chemical formula of Epson salt is
Question # 8
Which of the following has highest dipole moment?
Question # 9
Alkaline earth metals are usually
Question # 10
The silver bromide in hypo (Na2S2O3) solution is
Question # 11
The oxidation number of each element of group l-A is
Question # 12
Which of the following elements is not present abundantly in earth's crust?
Question # 13
Chile saltpetre has the chemical formula
Question # 14
Which of the following element is most reactive
Question # 15
Which of the following phosphorus is most reactive?
Question # 16
When SO2is passed through acidified K2Cr2O7solution
Question # 17
Carbonates of alkali metals dissolves freely in water to form
Question # 18
Chemical composition of colemnite is:
Question # 19
______ reacts with alkalis to give hydrogen
Question # 20
What is the formula of asbestos?
Question # 21
In a group IIA from top to bottom as the atomic number increases, there is regular decreases in
Question # 22
Lime, calcium oxide, is used in agriculture for
Question # 23
What is chrome yellow?
Question # 24
The alkaline earth elements have in their s-orbital
Question # 25
On alkali and alkaline earth metals down the group, there is decreasing trend in
Question # 26
The chemical formula of magnesite is
Question # 27
Which shows maximum catenation property?
Question # 28
A compound used as eye wash:
Question # 29
Which element form group 15 gives most basic compound with hydrogen?
Question # 30
Dipole moment of CO molecule is:
Top Scorers Of ECAT Chemistry Chapter 14 Group IIIA & IVA Elements MCQ`s Test
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ECAT Chemistry Chapter 14 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | What is going to replace the petroleum? |
A. Silica
B. Silicates
C. Silicones
D. Silicon
|
| 2 | 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
|
| 3 | Which is litharge or massicot? |
A. PbO
B. Pb2O
C. Pb3O4
D. PbO2
|
| 4 | Which of the following element is most reactive |
A. Li
B. Na
C. K
D. Cs
|
| 5 | Bond angle is minimum for |
A. H2O
B. H2S
C. H2Se
D. H2Te
|
| 6 | Plaster of pares is obtained by heating |
A. Gypsum
B. Epsom
C. Lime stone
D. Dolomite
|
| 7 | The chemical formula of magnesite is |
A. MgCl2
B. Mg(HCO3)2
C. MgCO3
D. None of these
|
| 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 | The alkali metals form |
A. Ionic bond
B. Covalent bond
C. Co-ordinate bond
D. H-bond
|
| 10 | What is the formula of asbestos? |
A. CaMg3(SiO3)4
B. CaSiO3
C. Na2SiO3
D. Mg3H2(SiO3)4
|
Test Questions