Class 10 Science Chapter 4 Important Questions Carbon and its Compounds


Important questions for Carbon and its Compounds Chapter 4 Class 10 Science with solutions. Extra questions for class 10 Science Chapter 4.


    Q1:

    (i) Name the simplest saturated hydrocarbon. Draw its electron dot structure. Which type of bonds exist in this compound ? (ii) Name any two mixtures of the carbon compound used as a fuel in daily life, of which the above mentioned compound is an important component. (iii) In which homologous series of carbon compounds can this compound be placed ? Write the general formula of the series. (iv) Which type of flame is produced on burning it ?

    CBSE [2023]

    Hard

    Q2:

    An acid 'X' and an alcohol 'Y' react with each other in the presence of an acid catalyst to form a sweet smelling substance 'Z'. Identify 'X', 'Y' and 'Z'. Write the chemical equation for the reaction involved and name it. The substance 'Z' on treatment with sodium hydroxide produces back the alcohol 'Y' and sodium ethanoate. Write the chemical equation for the reaction involved and name it, giving justification for the name.

    CBSE [2023]

    Hard

    Q3:

    Consider the structures of the three cyclic carbon compounds A, B and C given below and select the correct option from the following:

    Important question of Class 10

    (a) A and C are isomers of hexane and B is benzene. (b) A is an isomer of hexane, B is benzene and C is an isomer of hexene. (c) A is a saturated cyclic hydrocarbon and B and C are unsaturated cyclic hydrocarbons. (d) A is cyclohexane and B and C are the isomers of benzene.

    CBSE [2023]

    Easy

    Q4:

    State the reasons, why carbon cannot (i) Lose four electrons to form C\(^{4+}\) cation, and (ii) Gain four electrons to form C\(^{4-}\) anion. How does carbon overcome this problem to form compounds ?

    CBSE [2022]

    Medium

    Q5:

    "Two different forms of carbon - diamond graphite have different structures and very different physical properties even though their chemical properties are same." Explain why.

    CBSE [2022]

    Medium

    Q6:

    Consider the carbon compounds having following molecular formula: (i) C₃H₆ (ii) C₃H₈ (iii) C₄H₆ (iv) C₆H₆ (v) C₆H₁₂ (a) State the number of double covalent bonds present in C₃H₆. (b) Write the formula of first member of the homologous series to which the carbon compounds C₄H₆ belongs. (c) Which one of the above compounds forms ring structure of carbon atoms ? (d) Identify, which of the above compounds, is a member for alkane series.

    CBSE [2022]

    Medium

    Q7:

    Draw two different possible structures of a saturated hydrocarbon having four carbon atoms in its molecule. What are these two structures of the hydrocarbon having same molecular formula called ? Write the molecular formula and the common name of this compound. Also write the molecular formula of its alkyne.

    CBSE [2022]

    Medium

    Q8:

    (a) Write the molecular formula of the following carbon compounds : (i) Methane (ii) Propane (b) Carbon compounds have low melting and boiling points. Why ?

    CBSE [2022]

    Easy

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