Online Test of Chapter 4 Carbon and its Compounds Science| Class 10th
Questions :-
1. The bond formed by sharing of electron pair between two atoms is known as ___________
(a) Covalent bond
(b) Electrovalent bond
(c) Co – ordinate covalent bond
(d) None of these
2. Which compounds have low melting point and boiling point?
(a) Co – ordinate covalent bond
(b) Electrovalent bond
(c) Covalent bond
(d) None of these
3. General formula of alkane is _________
(a) CnH2n+2
(b) CnH2n
(c) CnH2n-2
(d) None of these
4. General formula of alkene is _________
(a) CnH2n+2
(b) CnH2n
(c) CnH2n-2
(d) None of these
5. General formula of alkyne is _________
(a) CnH2n+2
(b) CnH2n
(c) CnH2n-2
(d) None of these
6. Which of the following is a structure of Propanoic acid?
7. What is the I.U.P.A.C name of acetic acid?
(a) Methanoic acid
(b) Ethanoic acid
(c) Ethanal
(d) Methanal
8. Which of the following is a structure of Propanal?
9. What is the I.U.P.A.C name of acetone?
(a) Propanone
(b) Ethanone
(c) Butanone
(d) None of these
10. What is the I.U.P.A.C name of formaldehyde?
(a) Ethanal
(b) Butanal
(c) Pentanal
(d) Methanal
Chapter - 4 Carbon and its Compounds Test 1 | Class 10th Science
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Question 1 of 10
1. Question
The bond formed by sharing of electron pair between two atoms is known as ___________
Correct
The bond formed by sharing of electron pair between two atoms is known as covalent bond. Example – H2, N2
Incorrect
The bond formed by sharing of electron pair between two atoms is known as covalent bond. Example – H2, N2
-
Question 2 of 10
2. Question
Which compounds have low melting point and boiling point?
Correct
Covalent bond has weak force of attraction, so their bond will be easily break, hence their melting and boiling point are low.
Incorrect
Covalent bond has weak force of attraction, so their bond will be easily break, hence their melting and boiling point are low.
-
Question 3 of 10
3. Question
General formula of alkane is _________
Correct
General formula of alkane is CnH2n+2
Incorrect
General formula of alkane is CnH2n+2
-
Question 4 of 10
4. Question
General formula of alkene is _________
Correct
General formula of alkene is CnH2n
Incorrect
General formula of alkene is CnH2n
-
Question 5 of 10
5. Question
General formula of alkyne is _________
Correct
General formula of alkane is CnH2n-2
Incorrect
General formula of alkane is CnH2n-2
-
Question 6 of 10
6. Question
Which of the following is a structure of Propanoic acid ?
Correct
Propanoic acid(CH3CH2COOH) contains three carbon atom and one carboxylic group. So, the correct structure of propanoic acid is
Incorrect
Propanoic acid(CH3CH2COOH) contains three carbon atom and one carboxylic group. So, the correct structure of propanoic acid is
-
Question 7 of 10
7. Question
What is the I.U.P.A.C name of acetic acid?
Correct
Acetic acid (CH3COOH) contains two carbon and carboxylic group so the I.U.P.A.C name of acetic acid is ethanoic acid.
Incorrect
Acetic acid (CH3COOH) contains two carbon and carboxylic group so the I.U.P.A.C name of acetic acid is ethanoic acid.
-
Question 8 of 10
8. Question
Which of the following is a structure of Propanal?
Correct
Propanal (CH3CH2CHO) contains three carbon atom and one aldehyde group. So, the correct structure of propanal
Incorrect
Propanal (CH3CH2CHO) contains three carbon atom and one aldehyde group. So, the correct structure of propanal
-
Question 9 of 10
9. Question
What is the I.U.P.A.C name of acetone?
Correct
Acetone (CH3COCH3) contains three carbon and one ketone group. So, the I.U.P.A.C name of acetone is propanone.
Incorrect
Acetone (CH3COCH3) contains three carbon and one ketone group. So, the I.U.P.A.C name of acetone is propanone.
-
Question 10 of 10
10. Question
What is the I.U.P.A.C name of formaldehyde?
Correct
Formaldehyde (HCHO) contains one carbon and aldehyde group. So, their I.U.P.A.C name is methanal.
Incorrect
Formaldehyde (HCHO) contains one carbon and aldehyde group. So, their I.U.P.A.C name is methanal.