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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

Upto ___________________ C atoms alkanes are gases?
A 2
B 3
C 4
D 6
Correct Answer: 4
Hydrogen resembles with carbon because of having________________?
A Same number of electrons in the valence shell
B Similar physical state
C Remarkable reducing properties
D Homovalent (show same valency)
Correct Answer: Remarkable reducing properties
Dehalogenation of ethyl tetrahalide will give____________________?
A ethene
B ethyne
C ethyl halide
D all of the above are possible
Correct Answer: ethyne
Amphoteric exides are those which possess ____________ properties?
A Acidic
B Basic
C Acidic and basic
D Neutral and acidic
Correct Answer: Acidic
Soda lime is a mixture of____________________?
A CaO and KOH
B CaO and NaOH
C NaOH and Na2O
D Na2O and KOH
Correct Answer: CaO and NaOH
Modern periodic table has been divided in ___________ blocks?
A 2
B 4
C 8
D 7
Correct Answer: 4
Clemmensens reduction infolves the reduction of___________________?
A ketone
B aldehyde
C alkane
D all of the above
Correct Answer: ketone
Seventh period contains _________________ normal elements ?
A 2
B 4
C 6
D 8
Correct Answer: 2
Sabatier Senderns reaction involve _____________ in presence of Ni?
A Aalkene & H2
B alkene & O2
C alkene & N2
D alkyne & Cl2
Correct Answer: Aalkene & H2
The longest period in the modern periodic table is___________________?
A 6th
B 7th
C 2nd and 3rd both
D 5th
Correct Answer: 6th
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