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Science Chemical Reactions and Equations Class 10 MCQ and Assertion Questions

Short Quiz · Class 10 · Science · CBSE

Preparing for CBSE

Chapter 1 Class 10 - Chemical Reactions and Equations | 5 questions | about 4 minutes

Practise Chemical Reactions and Equations Class 10 with Teachoo's Short Quiz (Class 10 · Science · CBSE). Practise these questions in a free interactive quiz with answer feedback.

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Question 1 of 5
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Question 1 of 5
NCERT Exemplar
Which of the following is(are) an endothermic process(es)?
(i) Dilution of sulphuric acid
(ii) Sublimation of dry ice
(iii) Condensation of water vapours
(iv) Evaporation of water
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Question 2 of 5
https://www.teachoo.com/15469/3618/Question-14/category/MCQs-from-NCERT-Exemplar/?r=gn7vw0a361l
Which of the following gases can be used for storage of fresh samples of an oil for a long time?
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Question 3 of 5
Which of the following reactions is an endothermic reaction?
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Question 4 of 5
Assertion (A): Freshly painted whitewash (slaked lime) on brick walls does not appear shiny immediately, but develops a lustrous finish after 2 to 3 days.
Reason (R): Calcium hydroxide is a white amorphous powder that partially dissolves in water to produce an alkaline lime water solution.
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Question 5 of 5
NCERT Exemplar
Which of the following are combination reactions?
(i) \(2 \mathrm{KClO}_3 \xrightarrow{\text { Heat }} 2 \mathrm{KCl}+3 \mathrm{O}_2\)
(ii) \(\mathrm{MgO}+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{Mg}(\mathrm{OH})_2\)
(iii) \(4 \mathrm{Al}+3 \mathrm{O}_2 \longrightarrow 2 \mathrm{Al}_2 \mathrm{O}_3\)
(iv) \(\mathrm{Zn}+\mathrm{FeSO}_4 \longrightarrow \mathrm{ZnSO}_4+\mathrm{Fe}\)
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