Chemistry 1488 MCQs [All-Courses]

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In unsaturated hydrocarbons electrons favour___________________?

A less reactivity

B addition reactions

C substitution reactions

D none

Review Detailed Answer

Correct Answer: addition reactions

An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

A Group IA

B Group IB

C Group VIIA

D Group VIII

Review Detailed Answer

Correct Answer: Group IA

Alkenes are produced from dehalogenation of________________?

A dihalo alkane

B trihalo alkane

C vicinal dihalo alkane

D vicinal trihalo alkane

Review Detailed Answer

Correct Answer: dihalo alkane

Which of the following cannot exist in solution_________________?

A O-2

B H+

C Cl-

D Na+

Review Detailed Answer

Correct Answer: O-2

Which of the following will be acidic_____________?

A propyne

B 1-butyne

C ethyne

D all of the above

Review Detailed Answer

Correct Answer: all of the above

Which one of the following element has highest oxidation state in its compounds ?

A Cr

B Mn

C Sn

D O

Review Detailed Answer

Correct Answer: Mn

The gas used in manufacturing of urea fertilizer__________________?

A C2H6

B C2H4

C C2H2

D CH4

Review Detailed Answer

Correct Answer: CH4

True increasing order of acidity of the oxides of Mn is_________________?

A MnO < MnO2 < Mn2O7

B Mn2O7 > MnO2 > MnO

C MnO2 > MnO > Mn2O7

D MnO2 > Mn2O7 > MnO

Review Detailed Answer

Correct Answer: Mn2O7 > MnO2 > MnO

Introduction of nitro group in a molecule is called___________________?

A nitration

B halogenation

C sulphonation

D amination

Review Detailed Answer

Correct Answer: nitration

Which of the following possesses maximum hydration energy ?

A Na+

B K+

C Mg+2

D Ca+2

Review Detailed Answer

Correct Answer: Mg+2

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Chemistry 1488 MCQs [All-Courses]

All Topics 1488

All Topics 1488

In unsaturated hydrocarbons electrons favour___________________?

An element having low value of ionization energy and low value of electron affinity is likely to belong to__________________?

Alkenes are produced from dehalogenation of________________?

Which of the following cannot exist in solution_________________?

Which of the following will be acidic_____________?

Which one of the following element has highest oxidation state in its compounds ?

The gas used in manufacturing of urea fertilizer__________________?

True increasing order of acidity of the oxides of Mn is_________________?

Introduction of nitro group in a molecule is called___________________?

Which of the following possesses maximum hydration energy ?