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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

In which of the following type of reactions energy of reactant is greater than energy of product________________?
A endothermic
B exothermic
C unpredictable
D same
Correct Answer: exothermic
At which electrode the reduction of the solution is occurring in Al-Ag cell_____________?
A A
B Ag
C Both
D Neither
Correct Answer: A
The use of antifreeze in the automobile radiator is an important application of__________________?
A constitutive property
B additive property
C colligative property
D intrinsic property
Correct Answer: colligative property
1 mole of electron has mass in microgram_________________?
A 1.008 x 10-3
B 5.5 x 10-4
C 1.84 x 10-4
D 1.673 x 10-3
Correct Answer: 5.5 x 10-4
A solution has pH = 0 its H+ ion concentration is__________________?
A 1 x 10-1
B 1 x 10-14
C 1 x 10-7
D 1
Correct Answer: 1
Which of the following is not characteristics of reversible reaction__________________?
A whole amount of reactant does not change into product
B chemical equilibrium is established
C a catalyst changes the direction of reaction
D rate of forward reaction decreases as reaction proceeds
Correct Answer: a catalyst changes the direction of reaction
Which of the following theories is superior to others__________________?
A VSEPR
B VBT
C MOT
D none of the above
Correct Answer: MOT
The balanced chemical equation for the reaction which occurs when Be is added to water is____________?
A Be+2H2O?Be (OH)2+H2
B Be+H2O?Be (OH)2+H2
C Be+H2O?[Be (OH)4]+2+H2
D no reaction
Correct Answer: no reaction
Which of the solid does not contain covalent bond__________________?
A copper
B ice
C diamond
D graphite
Correct Answer: copper
The hardest of the following solids is__________________?
A sodium
B diamond
C graphite
D magnesium
Correct Answer: diamond
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