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Chemistry 1488 MCQs [All-Courses]

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.

Empirical formula of chloroform is____________________?

A CH2 C12

B CH3C1

C CC14

D CHCL3

Review Detailed Answer

Correct Answer: CHCL3

The number of peaks obtained in mass spectrometry shows____________________?

A Relative abundance

B Average mass of element

C Number of isotopes

D Relative isotopic mass

Review Detailed Answer

Correct Answer: Number of isotopes

Mass spectrometer is used to determine Mass number of isotopes and___________________?

A Atomic number

B Relative abundance

C Electronic configuration

D All of the above

Review Detailed Answer

Correct Answer: Relative abundance

Diameter of an atom is in the order of________________?

A 0.2m

B 0.2mm

C 0.2nm

D 0.2pm

Review Detailed Answer

Correct Answer: 0.2nm

What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called?

A Paint

B Glass

C Gun Powder

D Cement

Review Detailed Answer

Correct Answer: Gun Powder

Covalent network crystals have_____________?

A higher melting point then molecular crystals

B lower melting point then molecular crystals

C discrete molecules linked by Van der waals forces

D hydrogen bonding

Review Detailed Answer

Correct Answer: higher melting point then molecular crystals

All of the following substances are crystalline except_____________?

A Ice

B Diamond

C Sucrose

D Plastic

Review Detailed Answer

Correct Answer: Plastic

Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

A ionic substances

B metallic substances

C molecular solids

D covalent network solids

Review Detailed Answer

Correct Answer: metallic substances

Which of the following is a substance?

A Sea water

B Brass

C Tape water

D Graphite

Review Detailed Answer

Correct Answer: Graphite

Sodium carbonate is produced by____________?

A haber process

B Amonia solvay process

C decons process

D lead chamber process

Review Detailed Answer

Correct Answer: Amonia solvay process

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Chemistry 1488 MCQs [All-Courses]

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All Topics 1488

Empirical formula of chloroform is____________________?

The number of peaks obtained in mass spectrometry shows____________________?

Mass spectrometer is used to determine Mass number of isotopes and___________________?

Diameter of an atom is in the order of________________?

What is a mixture of Potassium Nitrate Powdered Charcoal and Sulphur called?

Covalent network crystals have_____________?

All of the following substances are crystalline except_____________?

Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________?

Which of the following is a substance?

Sodium carbonate is produced by____________?