Question 71 markMCQSection A

The total number of electrons shared in the formation of an ethyne molecule is :

Carbon and its Compounds
Covalent Bonding in Carbon

Options

(a)6
(b)3
(c)10
(d)4

Official answer

In the formation of an ethyne molecule, 10 electrons are shared between the two carbon atoms and the two hydrogen atoms.

Answer keywords:electronssharedethynecarbonhydrogen

Marking scheme

  1. 1.1 mark

Hint

Recall the electronic configuration of carbon and the number of valence electrons it has.

Quick oral answer

The total number of electrons shared in the formation of an ethyne molecule is 10.

Common mistakes

  1. 1.forgetting the electronic configuration of carbon
  2. 2.not counting the shared electrons correctly

Analysis and explanation

The question requires the student to recall the electronic configuration of carbon and the number of valence electrons it has. The student must also understand how these electrons are shared in the formation of an ethyne molecule.

Interesting facts

Ethyne is also known as acetylene

It is a highly flammable gas

Question details

Q7 of 39 questions

Board
CBSE
Class
Class 10
Subject
Science
Year
2023
Section
Section A
Marks
1
Type
MCQ
Chapter
Carbon and its Compounds
Topic
Covalent Bonding in Carbon
Bloom's level
Remembering
Syllabus topic
Chemical Bonding

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Frequently asked questions

How many marks does this question carry in CBSE Class 10 Science 2023?

This question carries 1 mark in the CBSE Class 10 Science 2023 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Carbon and its Compounds" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Covalent Bonding in Carbon" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2023 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2023 paper.