Chemistry GK · all questions

Organic Chemistry
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

256

Questions

8/13

Page

Pick an option on a question to see the right answer and solution.

Q141

Which one of the following is the largest composition in biogas?

Select an option to see the answer and solution.

Q142

Ethanol containing 5% water is known as

Select an option to see the answer and solution.

Q143

Through the reaction of benzene and chlorine in the presence of catalyst say iron. Which of the following would be obtained?

Select an option to see the answer and solution.

Q144

How many moles of CO can be obtained by reacting 2.0 mole of CH₄ with 2.0 mole of O₂ according to the equation given below?
CH₄(g) +

\frac{1}{2}

O₂ ⟶ CO + 2H₂

Select an option to see the answer and solution.

Q145

Chemical name of gammexane, is

Select an option to see the answer and solution.

Q146

What is the dominant chemical present in vinegar?

Select an option to see the answer and solution.

Q147

Which of the following has a triple bond?

Select an option to see the answer and solution.

Q148

In a molecule of benzene. . . . . . . Double bond is / are / present.

Select an option to see the answer and solution.

Q149

The prefix joining with hydrocarbons with 4 carbon atoms is-

Select an option to see the answer and solution.

Q150

Which of the following is the correct match?

Select an option to see the answer and solution.

Q151

Which of the following are amongst the few carbon-containing compounds not classified as organic?

Select an option to see the answer and solution.

Q152

Match List-I with List-II and select the correct answer:

List-I	List-II
a. Butadiene	1. Match industry
b. Lead tetraethyl	2. Dye industry
c. Phosphorus	3. Rubber industry
d. Aniline	4. Petroleum

Select an option to see the answer and solution.

Q153

Which of the following is not the allotrope of carbon?

Select an option to see the answer and solution.

Q154

Assertion (A) BHC is also called gammexane or 666.
Reason (R) BHC is prepared by the reaction of benzene with Cl₂ in the presence of light.

Select an option to see the answer and solution.

Q155

An organic compound is used in making picric acid (explosive), phenolphthalein (an indicator), bakelite, salol, aspirin, salicylic acid etc. The organic compound is

Select an option to see the answer and solution.

Q156

All members of a homogeneous series can be represented by the same general formula. Choose the wrong formula from the following.
Alkane - C_nH_{2n + 2}
Alkyne - C_nH_{2n + 1}
Alkine - C_nH_{2n - 2}

Select an option to see the answer and solution.

Q157

COOH is present in which of the following functional groups?

Select an option to see the answer and solution.

Q158

How many hydrogen atoms are present in a molecule of ethanol?

Select an option to see the answer and solution.

Q159

Which gas is used in hot air balloons?

Select an option to see the answer and solution.

Q160

Which of the following element is always present in organic compounds?

Select an option to see the answer and solution.

Prev 6 7 8 9 10 Next