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Chemistry 1488 MCQs [All-Courses]

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The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

A 1.8 gram of H2O

B 12 moles of KMnO4

C 0.6N H2SO4

D 4.6 gram of C2H5OH

Review Detailed Answer

Correct Answer: 12 moles of KMnO4

Silicon differ from silica by a group of__________________?

A Ch3

B OH

C OCH3

D O2

Review Detailed Answer

Correct Answer: Ch3

Enzynies that catalyze the transfer of groups within molecule are called_________________?

A Isomerases

B Lyases

C Transferases

D Ligases

Review Detailed Answer

Correct Answer: Isomerases

Which of the following phenomenon is considered responsible for Global Warming?

A Greenhouse effect

B Fire in coal mines

C Dry farming

D Monsoon

Review Detailed Answer

Correct Answer: Greenhouse effect

Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?

A As nitrometer

B To remove air bubbles from molten metal

C To produce alloy

D As insulator

Review Detailed Answer

Correct Answer: To remove air bubbles from molten metal

Orgosterol is__________________?

A Orgocalciferol

B Vitamin D2

C Sterol

D all of the above

Review Detailed Answer

Correct Answer: Sterol

The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?

A p-electrons in Ne(Z = 10)

B s-electrons in Mg(Z = 12)

C d-electrons in Fe(Z = 26)

D p-electrons in CI(Z = 17)

Review Detailed Answer

Correct Answer: p-electrons in CI(Z = 17)

Orthoboric acid is 2.6% soluble in water at 40?C and ___________at 107°C.

A 26%

B 27%

C 37%

D <2.6%

Review Detailed Answer

Correct Answer: 37%

Lipopolysaccharides are examples of________________?

A Derived lipids

B Simple lipids

C Compound lipids

D Not a type of lipids

Review Detailed Answer

Correct Answer: Compound lipids

The metallurgical process in which a metal is obtained in a fused state is called__________?

A smelting

B roasting

C calcinations

D froth floatation

Review Detailed Answer

Correct Answer: smelting

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Chemistry 1488 MCQs [All-Courses]

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All Topics 1488

The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

Silicon differ from silica by a group of__________________?

Enzynies that catalyze the transfer of groups within molecule are called_________________?

Which of the following phenomenon is considered responsible for Global Warming?

Because of its ability to combine with both oxygen and nitrogen aluminium metal is used_____________?

Orgosterol is__________________?

The number of d-electrons in Fe2+ (Z = 26) is not equal to that of____________?

Orthoboric acid is 2.6% soluble in water at 40?C and ___________at 107°C.

Lipopolysaccharides are examples of________________?

The metallurgical process in which a metal is obtained in a fused state is called__________?