M C Q s D r i v e

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.

A limiting reactant is one which________________?
A is taken in lesser quantity in grams as compared to other reactants
B is taken in lesser quantity in volume as compared to other reactants
C gives the maximum amount of the product which is required
D gives the minimum amount of the product under consideration
Correct Answer: gives the minimum amount of the product under consideration
Which element has same isotopes like palladium___________________?
A Nickel
B Calcium
C Cadmium
D Tin
Correct Answer: Calcium
The number of atoms in a molecule determines________________?
A macromolecule
B macromolecule
C molecularity
D atomicity
Correct Answer: atomicity
The mass of one mole of electron is________________?
A 1.008
B 0.55
C 0.184
D 1.637
Correct Answer: 0.55
Chlorination of water may be harmful if the water contains_________________?
A Ammonia
B Dissolved oxygen
C Carbon dioxide
D All
Correct Answer: Carbon dioxide
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: Urea
For industrial preparation of CH3CHO catalytic promoter is_________________?
A PdCl2
B Cu2Cl2
C CuCl2
D PbCl2
Correct Answer: Cu2Cl2
Ethy1 chloride on reduction in the presence of Zn/HCI produces___________________?
A n. butane
B Ethanol
C Ethane
D Diethy1 ether
Correct Answer: Ethane
When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields______________?
A Carboxylic acid
B Ethanoic acid
C Propanoic acid
D Butanoic acid
Correct Answer: Propanoic acid
Which one of the following will be sulphonated readily ?
A Chlorobenzene
B Toluene
C Nitrobenzene
D Benzene
Correct Answer: Toluene