Question Paper
Class / Subject: Class 10 (CBSE) · Science
Chapter: Chapter 4 — Chapter 4: Carbon and its Compounds
Time Allowed: 15 minutes
Max Marks: 6
1. Carbon compounds are mainly held together by: [1]
(A) covalent bonds
(B) ionic bonds
(C) metallic bonds
(D) no bonds
2. Carbon's property of catenation refers to its ability to: [1]
(A) bond with itself to form chains/rings
(B) lose electrons easily
(C) conduct electricity well
(D) form only single bonds
3. Carbon compounds are generally: [1]
(A) poor conductors of electricity
(B) good conductors of electricity
(C) always gases
(D) always metals
4. Compounds in the same homologous series differ by: [1]
(A) a CH₂ unit
(B) a functional group
(C) their state of matter
(D) their colour
5. The functional group present in ethanol (an alcohol) is: [1]
(A) -OH
(B) -COOH
(C) -CHO
(D) -CO-
6. A functional group determines a compound's: [1]
(A) characteristic chemical behaviour
(B) physical colour only
(C) mass only
(D) state of matter only