NCERT Class X Science Class: Chapter –4. Carbon and its Compounds – Part-2

Download PDF of This Page (Size: 275K)

Question 7:

Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of

  1. Addition reaction

  2. Substitution reaction

  3. Displacement reaction

  4. Oxidation reaction

Answer: A

Image addition reaction

Image Addition Reaction

Image addition reaction

Question 8:

In which of the following compounds, is the functional group?

  1. Butanone

  2. Butanol

  3. Botanic acid

  4. Butanol

Answer: B

Image structure of Butanol

Image Structure of Butanol

Image structure of Butanol

Question 9:

The soap molecule has a

  1. Hydrophilic head and a hydrophobic tail

  2. Hydrophobic head and a hydrophilic tail

  3. Hydrophobic head and a hydrophobic tail

  4. Hydrophilic head and a hydrophilic tail

Answer: A

Image Hydrophilic head and a hydrophobic tail

Image Hydrophilic Head and a Hydrophobic Tail

Image Hydrophilic head and a hydrophobic tail

Question 10:

Which of the following is the correct representation of electron dot structure of nitrogen?

(a)

Figure shown the dot structure of nitrogen

Figure Shown the Dot Structure of Nitrogen

Figure shown the dot structure of nitrogen

(b)

Figure shown theFigure shown the dot structure of nitrogen(2)

Figure Shown theFigure Shown the Dot Structure of Nitrogen(2)

Figure shown theFigure shown the dot structure of nitrogen(2)

(c)

Figure shown the dot structure of nitrogen(3)

Figure Shown the Dot Structure of Nitrogen(3)

Figure shown the dot structure of nitrogen(3)

(d)

Figure shown the dot structure of nitrogen(4)

Figure Shown the Dot Structure of Nitrogen(4)

Figure shown the dot structure of nitrogen(4)

Answer: D

Image dot structure of nitrogen

Image Dot Structure of Nitrogen

Image dot structure of nitrogen

Question 11:

Structural formula of ethane is

  1. Figure shown the structure of ethane(

    Figure Shown the Structure of Ethane(

    Figure shown the structure of ethane(

Figure shown the structure of ethane(2)

Figure Shown the Structure of Ethane(2)

Figure shown the structure of ethane(2)

Answer: A

Image structure of ethane(2)

Image Structure of Ethane(2)

Image structure of ethane(2)