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A chemical compound used in… (Class 10 Science 2024, Q3)

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ScienceCBSE Class 10 · Board exam 2024, set 31/3/1 · 1 mark · MCQ

CBSE Class 10 Science 2024: question 3

Set in the CBSE Class 10 board exam of 2024, paper 31/3/1, section A, question 3, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q3 · 1 mark · MCQAcids, Bases and Salts

A chemical compound used in glass, soap and paper industries is

  1. (A)Washing Soda
  2. (B)Baking Soda
  3. (C)Bleaching Powder
  4. (D)Common Salt

Source: official question paper from cbse.gov.in (PDF). See it in the full 2024 board paper, set 31/3/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Recall the uses of sodium carbonate listed in NCERT.

Hint 2

Which of these is used to remove the hardness of water?

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. Washing soda, , is used in the glass, soap and paper industries. It is also used to make borax and to remove permanent hardness of water.

  2. Baking soda is used in cooking and antacids, bleaching powder in bleaching and disinfecting, and common salt as a raw material and in food. The answer is (A).

    1 mark

Answer: Washing soda, option (A)

Where the marks are

  • Identifies washing soda (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Acids, Bases and Salts, one at a time, marked against the answer key and marking points.Back to the full paper2024 board paper, set 31/3/1: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.