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In the reaction of… (Class 10 Science SQP 2025-26, Q23)

questionbuddy.in/q/cbse-10-science-2025-26-sqp-q23-reaction-aqueous-solution-barium-chloride

ScienceCBSE Class 10 · Sample paper, session 2025-26 · 1 mark · MCQ

CBSE Class 10 Science sample paper 2025-26: question 23

From the official CBSE sample question paper for 2025-26, section B, question 23, for 1 mark. Try it first; the hints and our step-by-step solution are below.

Q23 · 1 mark · MCQChemical Reactions and Equations

In the reaction of aqueous solution of barium chloride with aqueous solution of sodium sulphate, the aqueous solution formed will be:

  1. (A)
  2. (B)
  3. (C)
  4. (D)

Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2025-26.

Hints

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

Hint 1

Swap the ions of the two reactants to get the products.

Hint 2

One product is a white precipitate. The other remains in solution.

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. This is a double displacement (precipitation) reaction: .

  2. is a white insoluble precipitate. The product that stays dissolved is , option (D).

    1 mark

Answer: NaCl, option (D)

Where the marks are

  • Writes the products and identifies NaCl as the aqueous product (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Chemical Reactions and Equations, one at a time, marked against the answer key and marking points.Back to the full paperSample paper 2025-26: 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.