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Online Tests
Chemistry Fsc Part 2 Chapter 3 Online Test MCQs With Answers
Question # 1
------------- metal is used in the Thermite process because of its reactivity
Choose an answer
Tron
Copper
Aluminium
Zinc
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Question # 2
Which one of the following elements exhibits s-inert pair effect.
Choose an answer
B
Al
Pb
Sc
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Question # 3
In which compound, the oxidation state of boron in not +3
Choose an answer
H2BO3
Ca2B2O11
Na2B4O7
Mg3B2
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Question # 4
Which one of the following compounds of lead is red in colour
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PbO
Pb2O
Pb3O4
PbCO3
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Question # 5
Which of the following elements is not present abundantly in earth's crust
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Silicon
Aluminium
Sodium
Oxygen
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Question # 6
Aluminium oxide is.
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Acidic oxide
Basic oxide
Amphoteric oxide
None of these
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Question # 7
Which of the following elements is not present abundantly in earth's crust.
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Silicon
Aluminium
Sodium
Oxygen
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Question # 8
Which is not used of Borax
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Softening of water
As medicine for washing eyes
As flux in metallurgical operations
To make quartz
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Question # 9
The aqueous solution of Borax
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Acidic
alkaline
Amphoteric
manual
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Question # 10
Boric acid cannot be used
Choose an answer
As antiseptic in medicine
For washing eyes
In soda bottles
For Enamals and Glazes
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Question # 11
Tincal is a mineral of
Choose an answer
Al
C
Si
B
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Question # 12
Aluminium does not corrode because.
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It is a semi metal
It is a silver shining metal
It does not react with O2
It forms a protective layer of Al2O3
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Question # 13
Boric acid can not be used.
Choose an answer
As antiseptic in medicine
For washing eyes
In soda bottle
For enamels and glazes
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Question # 14
Which element forms on ion wiht charge 3+
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Beryllium
Aluminium
Carbon
silicon
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Question # 15
Which is used in the leather industry
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Borax
Boric acid
Boric oxide
Tetra Boric acid
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Question # 16
Which element burns in nitrogen atmosphere to form nitride.
Choose an answer
Mg
Al
Both a and b
None of these
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Question # 17
Aluminum reacts with nitrogen to form
Choose an answer
AIN
Al
2
N
Al
2
N
3
Al
4
N
6
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