More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Chemistry Chapter 14 Group IIIA & IVA Elements Online Test MCQs With Answers
Question # 1
The oxidation number of each element of group l-A is
Choose an answer
0
+1
+2
-1
Previous
Skip
Next
Question # 2
Which one of the following equations represent the reaction that occurs when calcium nitrate is heated strongly
Choose an answer
Previous
Skip
Next
Question # 3
Which one of the following does not belong to alkaline earth metals
Choose an answer
Be
Ra
Ba
Rn
Previous
Skip
Next
Question # 4
Gypsum is applied to the soil to provide calcium and
Choose an answer
Oxygen
Nitrogen
Phosphorous
Sulphur
Previous
Skip
Next
Question # 5
Which carbonate of alkali metals is insoluble in water
Choose an answer
Na
2
CO
3
K
2
CO
3
Li
2
CO
3
Cs
2
CO
3
Previous
Skip
Next
Question # 6
Each of the following is true of white and red phosphours except that they
Choose an answer
Are both soluble in CS
2
Can be oxidized by heating in air
Consist of the same kind of atoms
Can be converted into one another
Previous
Skip
Next
Question # 7
Hybridized in oxygen is:
Choose an answer
sp
sp
2
sp
3
dsp
3
Previous
Skip
Next
Question # 8
Which of the following compounds is explosive in nature?
Choose an answer
Phosphorus trichloride
Nitrogen trichloride
Hyponitrous acid
Nitrosyl chloride
Previous
Skip
Next
Question # 9
Which one of the following properties is not correct for ozone?
Choose an answer
It oxidizes lead sulphides
It oxidizes potassium iodide
It oxidizes mercury
It cannot act as a bleaching agent
Previous
Skip
Next
Question # 10
Which is used in navigational equipments?
Choose an answer
B
Be
Mg
Al
Previous
Skip
Next
Question # 11
BiCl
3
on hydrolysis forms a white precipitate of
Choose an answer
Bismuthio acid
Bismuth oxychloride
Bismuth pentachloride
Bismuth hydroxide
Previous
Skip
Next
Question # 12
When sulphur is boiled with Na
2
SO
3
solution, the compound formed is
Choose an answer
Sodium sulphides
Sodiums sulphates
Sodium persulphate
Sodium thiosulphate
Previous
Skip
Next
Question # 13
Copper oxide is dedected by borax bead test with colour:
Choose an answer
Blue
Red
Yellow
Black
Previous
Skip
Next
Question # 14
What causes nitrogen to be chemically inert?
Choose an answer
Multiple bond formation in the molecule
Absence of bond distance
Short internuclear distance
High bond energy
Previous
Skip
Next
Question # 15
Down's cell is used to prepare
Choose an answer
Sodium carbonate
Sodium bicarbonate
Sodium metal
Sodium hydroxide
Previous
Skip
Next
Question # 16
The number of electron that are paired in oxygen molecule are
Choose an answer
16
12
14
7
Previous
Skip
Next
Question # 17
Which of the following fluorides does not exists?
Choose an answer
NF
5
PF
5
AsF
5
SbF
5
Previous
Skip
Next
Question # 18
Alkaline earth metals are usually
Choose an answer
Reducing agent
Oxidizing agent
Amphoteric
Acidic
Previous
Skip
Next
Question # 19
Which salt is used for preserving food
Choose an answer
BaCl
2
CaCl
2
NaCl
Na
2
SO
4
Previous
Skip
Next
Question # 20
Sodium hexametaphophate is known as
Choose an answer
Calgon
Permutite
Natalite
Nitrolim
Previous
Skip
Next
Question # 21
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?
Choose an answer
It will react with water to liberate oxygen
Its hydroxide will be a strong alkali in water
Its carbonate will decompose on heating to give carbon dioxide
Its nitrate on heating will give nitrogen dioxide and oxygen
Previous
Skip
Next
Question # 22
Sodium should be stored in
Choose an answer
Air free from moisture
Air free form carbon dioxide
Under water
Under kerosene oil
Previous
Skip
Next
Question # 23
Which metal of Group-II A of the periodic Table, will form the least ionic chloride
Choose an answer
Be
Mg
Ca
Sr
Previous
Skip
Next
Question # 24
Tincal is a mineral of:
Choose an answer
Al
B
Si
C
Previous
Skip
Next
Question # 25
Calcium carbide reacts with water to produce
Choose an answer
Acetylene
Methane
Ethylene
Ethane
Previous
Skip
Next
Question # 26
Which of the following is the hardest metal among following
Choose an answer
Li
Na
Rb
K
Previous
Skip
Next
Question # 27
Which one of the following pentafluorides cannot be formed?
Choose an answer
PF
5
AsF
5
SbF
5
BiF
5
Previous
Skip
Next
Question # 28
Which of the element is not an alkaline earth metal
Choose an answer
Beryllium
Strontium
Barium
Caesium
Previous
Skip
Next
Question # 29
______ reacts with alkalis to give hydrogen
Choose an answer
Be
Mg
Ca
None
Previous
Skip
Next
Question # 30
Alkali metals react violently with halogens to form
Choose an answer
Hydrides
Halides
Anyhydrides
None of these
Previous
Skip
Next
Question # 31
A compound used as eye wash:
Choose an answer
Borax
Boric acid
Metabolic acid
Pyroboric acid
Previous
Skip
Next
Back