Aliphatic Compounds

Q.

List the limitations of Kekules structure ?

Q. Write the general formulas of alkane, alkene and alkyne.

Q.

Alkenes are also called _______.

1. olefins

2. paraffins

3. acetylenes

4. None of these

Q.

Draw the structure of benzene and cyclohexane.

Q.

Who is the first member of the ketone series?

Q. The condensed formula of propane is .

1. $C{H}_{3}CH\left(C{H}_3\right)C{H}_3$
2. $C{H}_{3}C{H}_{2}C{H}_3$
3. $C{H}_{3}C{H}_3$

Q.

Do cycloalkanes decolourise bromine water?

Q.

Choose unsaturated compounds from the following.

1. Ethane

2. Ethene

3. Ethyne

4. Acetylene

Q.

Which of the following is the common name of ethyne?

1. acetylene

2. olefins

3. paraffins

4. None of these

Q.

Due to their low boiling points, lower alkanes are highly volatile.

1. False

2. True

Q.

Why are alkynes called unsaturated hydrocarbons?

Q.

What happened when hydrogen is added to vegetable oil?

Q. Write the structural formula for pentan-1-oic aicd.

Q.

The correct IUPAC name of

1. Methane-tri-carboxylic acid

2. 2-Carboxy propane-1, 3-dioic acid

3. 1, 2, 3-Propanetrioic acid

4. 1, 2, 3-butanetrioic acid

Q.

Saturated hydrocarbons contain C atoms joined by a ___ covalent bond.

Q.

A saturated hydrocarbon will undergo _________ reactions whereas the typical reaction of an unsaturated hydrocarbon is ______

Q.

Choose a saturated compound among the following given options:

1. Ethane

2. Ethene

3. Ethyne

4. Acetylene

Q. Write the general formulas of alkane, alkene and alkyne.

Q.

Which of the following is the common name of ethyne?

1. acetylene

2. paraffins

3. olefins

4. None of these

Q.

Which of the following is an unsaturated compound?

1. $C_6{H}_{14}$

2. $C_6{H}_{12}$

3. $C_3{H}_{7}OH$

4. $C_3{H}_{5}COOH$

Q. is the most stable compound among the following.

1. Butene
2. Butane
3. Butyne

Q.

In the context of hydrocarbons, consider the following statements,

i) Compounds with single bonds are more stable than those with double or triple bonds.

ii) During the formation of the double or triple bonds, the spatial orientation of other orbitals changes and interelectronic repulsions increase.

1. Only i) is correct

2. Only ii) is correct

3. Both i) and ii) are correct but ii) dosen't explain one

4. Both i) and ii) are correct and ii) explain one

Q.

General formula for alkyne is:

Q.

Give a chemical test to distinguish between saturated and unsaturated compounds.

Q. Why single carbon covalent are only saturated hydrocarbons

Q. Arrange the following C-C bonds according to their reactivity.
(The topmost one being the least reactive)

1. $C-C-C-C$
2. $C=C$
3. $C\equiv C-C$
4. $C=C=C$

Q. Write the structural formula for pentan-1-oic aicd.

Q. Match the number of carbon atoms with its corresponding word root.

1. eth
2. but
3. hept
4. dec

Q. A straight chain alkane is formed out of ten carbon atoms. How many hydrogen atoms will be there in that molecule?

1. Forty
2. Twenty two
3. Twenty
4. Twenty one

Q.

Alkanes are:

1. Non-polar solvents

2. Polar solvents

3. Soluble in protic solvents

4. Soluble in water