Lakhmir Singh Solutions Class 10 Chemistry Solutions for Exercise in Chapter 4 - Chapter 4 Carbon and its Compounds

Question 4 Exercise

Fill in the following blanks with suitable words:

(a) The form of carbon which is known as black lead is ____.

(b) The form of carbon which is used as a lubricant at high temperature is ____.

(c) Compounds of carbon with hydrogen alone are called ____.

(d) CnH2n is the general formula of ______ hydrocarbons.

(e) Hydrocarbons having the general formula CnH2n-2 are called _____.

(f) Ethene and ethyne are examples of _____ hydrocarbons.

(g) Ethyne has _____ carbon-hydrogen single bonds.

(h) Carbon compounds have usually _____ melting points and boiling points because they are ____ in nature.

(i) The property of carbon atoms to form long chains in compounds is called ______.

(j) The general formula CnH2n for cycloalkanes is the same as that of ____.

(k) The IUPAC name of ethylene is ____.

(l) The IUPAC name of acetylene is ____.


(a) Graphite

(b) Graphite

(c) Hydrocarbons

(d) Alkene

(e) Alkynes

(f) Unsaturated

(g) Two

(h) Low; covalent

(i) Catenation

(j) Alkenes

(k) Ethene

(l) Ethyne

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