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Chemistry(General Knowledge > General Science ) Questions and Answers
Home
Topic
General Knowledge
General Science
Chemistry
Question 1.
"Paramagnetism" is the property of
Paired electrons
Completely filled electronics subshells
Unpaired electrons
Completely vacant electronic subshells
Explanation:-
Answer: Option C. ->
Unpaired electrons
Question 2.
The structure of NaCl crystal is
Body centered cubic
Face centered cubic
Octahedral
Square planar
Explanation:-
Answer: Option B. ->
Face centered cubic
Question 3.
Which one of the following minerals is found in Monazite sand ?
Potassium
Uranium
Thorium
Sodium
Explanation:-
Answer: Option C. ->
Thorium
Question 4.
The heaviest naturally occurring element is:
Mercury
Polonium
Thorium
Uranium
Explanation:-
Answer: Option D. ->
Uranium
Question 5.
Which of the following is the main compound of voter ink?
Silver nitrate
Ammonium Chloride
Silver Chloride
Ammonium Nitrate
Explanation:-
Answer: Option A. ->
Silver nitrate
Question 6.
In which of the following ions , the colour is not due to d-d transition ?
[Ti(H2O)6]3+
[CoF6]3+
[CrO4]2−
[Cu(NH3)4]2+
Explanation:-
Answer: Option C. ->
[CrO4]2−
Question 7.
What is Zeolite?
Hydrated Aluminosilicate
Hydrated Calcium Sulphate
Dehydrated Aluminosilicate
Dehydrated Calcium Sulphate
Explanation:-
Answer: Option A. ->
Hydrated Aluminosilicate
Question 8.
The coordination number of body centered atom in cubic structure is
4
6
8
10
Explanation:-
Answer: Option C. ->
8
Question 9.
The product, 9-nitroanthracene is obtained from anthracene by the action of
Nitric acid and acetic anhydride
Nitric acid and ethyl alcohol
Nitric acid and acetic acid
Nitric acid in excess
Explanation:-
Answer: Option A. ->
Nitric acid and acetic anhydride
Question 10.
Peroxyacetyl nitrate is a
Acidic dye
Plant hormone
Vitamin
Secondary pollutant
Explanation:-
Answer: Option D. ->
Secondary pollutant
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