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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

Which one of the following fertilizers provides the nitrogen and phosphorus to the plant ?
A urea
B calcium superphosphate
C diammonium phosphate
D potassium nitrate
Correct Answer: diammonium phosphate
The number of lone pairs in XeOF4 is_________?
A O
B 1
C 2
D 3
Correct Answer: 1
The process of aluminium extraction is called__________________?
A Hall process
B Thermite process
C Haber process
D Contact process
Correct Answer: Hall process
The percentage of nitrogen in urea is________________?
A 36%
B 46%
C 56%
D 66%
Correct Answer: 46%
The O-O linkage is present in__________?
A H2S2O3
B H2SO8
C H2S4O6
D H2 S2 O6
Correct Answer: H2SO8
Which one of the following is not a semiconductor ?
A Si
B Ge
C Se
D Sn
Correct Answer: Sn
Which one of the following set of raw material is most suitable for manufacture of urea ?
A CH4 N2 and CO2
B H2 N2 and CO
C H2 CO2 and H2O
D H2O N2 and H2
Correct Answer: CH4 N2 and CO2
Poisonous gas present in the exhaust fumes of a jet plane is__________?
A Flurocarbon
B Carbon monoxide
C Methane
D C2H2
Correct Answer: Carbon monoxide
Tincal is a mineral of___________________?
A A1
B Si
C B
D C
Correct Answer: B
How many zones through which the charge passes in a rotary kiln ?
A 4
B 3
C 2
D 5
Correct Answer: 4
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