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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

The specific rate constant of a first order reaction depends on the________________?
A Time
B Concentration of the reactant
C Temperature
D Concentration of the product
Correct Answer: Temperature
Ce58 is a member of__________?
A S-block
B P-block
C d-block
D f-block
Correct Answer: f-block
Oxygen and sulphur resemble in all except________________?
A Electronic conviguration of valence shell electrons
B Show allotropy
C Polymeric
D Show same oxidation state
Correct Answer: Show same oxidation state
The rate of reaction___________________?
A Increases as the reaction proceeds
B Decreases as the reaction proceeds
C Remains the same as the reaction proceeds
D May decrease or increase as the reaction proceeds
Correct Answer: Decreases as the reaction proceeds
Basicity of orthophosphoric acid is________?
A 2
B 3
C 4
D 5
Correct Answer: 3
The chemical composition of cinnabar is__________________?
A ZnS
B PbS
C HgS
D FeS
Correct Answer: HgS
The sequence of zones in the rotary kiln are as____________________?
A dry zone burning zone decomposition zone cooling zone
B cooling zone burning zone decomposition zone dry zone
C burning zone cooling zone decomposition zone
D dry zone decomposition zone burning zone cooling zone
Correct Answer: dry zone decomposition zone burning zone cooling zone
Gypsum is______?
A CaSO4
B CaSO4.1/2H2O
C CaSO4,2H2O
D CaSO4.3H2O
Correct Answer: CaSO4
Which allotropic form of phosphorous is the most stable ?
A White
B black
C red
D Violet
Correct Answer: black
Which one of the following raw material is not present in the cement ?
A lime stone
B gypsum
C KNO3
D iron oxide
Correct Answer: iron oxide
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