Consider the following statements about hydrocarbons. i. Alkanes are saturated hydrocarbons that contain single bonds. ii. Alkynes are unsaturated hydrocarbons that contain one or more double bonds. iii. Alkenes are Unsaturated hydrocarbons that contain one or more triple bonds.

Which of the following statement(s) is/are CORRECT? I. Carbon compounds linked by only single bond are called saturated compounds. II. Carbon compounds having double or triple bonds are called unsaturated compounds. III. Saturated carbon compounds are more reactive than unsaturated carbon compounds.

A

Only I and II

B

Only I and III

C

Only II and III

D

All I, II and III

Which of the following statement(s) is/are INCORRECT? I. Alkenes are fairly unreactive. II. Alkenes burn with blue flame. III. Alkanes burn with yellow flame.

A

Only I and II

B

Only I and III

C

Only II and III

D

All I, II and III

Which of the following statement(s) is/are INCORRECT? I. Alkenes are fairly unreactive. II. Alkenes burn with blue flame. III. Alkanes burn with yellow flame.

A

Only I and II

B

Only I and III

C

Only II and III

D

All I, II and III

Which of the following statement is correct about the hydrocarbons? An unsaturated hydrocarbon containing a double bond is indicated by writing the word 'ene' after the stem. An unsaturated hydrocarbon containing a triple bond is indicated by writing the word 'yne' after the stem.

A

Statement 1 is correct

B

Statement 2 is correct

C

Both are correct

D

Both are incorrect

Consider the following statements: 1. There is no change in temperature when a liquid is being evaporated into vapour 2. Vapour is a mixed phase of liquid and gas in the zone between saturated liquid line and saturated vapour line 3. The saturated dry vapour curve is steeper as compared to saturated liquid curve on a T-s diagram 4. The enthalpy of vaporization decreases with increase in pressure Which of the above statements are correct?

A

1, 2 and 3 only

B

3 and 4 only

C

1, 2 and 4 only

D

1, 2, 3 and 4

Hotel Aditya has 10 single AC rooms, 5 double AC rooms and 18 non AC rooms. The fixed monthly rent of hotel is 150,000. The per day maintenance cost is Rs. 100 for double AC room, Rs. 75 for single AC room and Rs. 40 for non AC room. The per day charges are Rs. 600 for double AC room, Rs. 400 for single AC room and Rs. 250 for non AC room. In April 2003, the occupancy rate of non AC room was 50%, 70% of single AC room and 40% of double AC rooms. Find the profit/loss % for that particular month.

A

10.33% (profit)

B

10.33% (loss)

C

5.67% (loss)

D

5.67% (profit)

E

No profit, no loss

Assertion (A) Double bond cause more repulsion than single bonds.
Reason (R) Triple bonds cause more repulsion than a double bond.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true, but R is not the correct explanation of A

C

A is true, but R is false

D

A is false, but R is true

Alkenes, unsaturated hydrocarbons containing a double bond between two carbon atoms, have a general formula, which is:

A

C_nH_2n+2

B

C_nH_2n-1

C

C_nH_2n+1

D

C_nH_2n

Study the following statements.
1. The gas supplied in cylinders for cooking is mixture of C₃H₈ and C₄H₁₀.
2. The thermal decomposition of alkanes is known as cracking.
3. Paraffin wax is saturated hydrocarbons.
Which of the statements given above are correct?

A

1 and 2

B

1 and 3

C

2 and 3

D

1, 2 and 3

Alkanes are saturated hydrocarbons, in which a single bond is found between two carbon atoms. The general formula is:

A

C_nH_{2n + 2}

B

C_nH_{n + 1}

C

C_nH_{2n - 1}

D

C_nH_{2n + 1}

Consider the following statements about hydrocarbons. i. Alkanes are saturated hydrocarbons that contain single bonds. ii. Alkynes are unsaturated hydrocarbons that contain one or more double bonds. iii. Alkenes are Unsaturated hydrocarbons that contain one or more triple bonds.

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