Chemistry 1488 MCQs [All-Courses]

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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____________?