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Category: Class 10 Science

NCERT Solutions for Class 10 Science and important questions for CBSE class 10 for session 2020-2021

Etaha

Asked: June 19, 2021In: Class 10 Science

When an electric current flows through a conductor it becomes hot. Why? List the factors on which the heat produced in a conductor depends, State “Joule’s Law of heating”. How will the heat produced in an electric circuit be affected, if the resistance in the circuit is doubled for the same current?

NCERT Important Questions Class 10 Science CBSE 2022-2023. NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board NCERT book extra.

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Etaha

Asked: June 19, 2021In: Class 10 Science

While performing the experiment to’study the properties of HCI and NaOH by their reaction with Na2CO3 a student can con{irm whether hydrogen or carbon dioxide is liberated, by:

NCERT Important Questions Class 10 Science CBSE 2022-2023. NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board NCERT book extra.

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Etaha

Asked: June 19, 2021In: Class 10 Science

Debo added a few Zn granules to 50 mL of a solution of CuSO4 in a test tube. The correct observation made by him for change in colour of solution is:

NCERT Important Questions Class 10 Science CBSE 2022-2023. NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board NCERT book extra.

Poll

Etaha

Asked: June 19, 2021In: Class 10 Science

Mousoomee was asked to compare the reactivity of metals Zn and Fe. She took zinc granules and ferrous sulphate crystals in a 50 mL beaker. She waited for 10 minutes but no reaction took place. The reason was:

NCERT Important Questions Class 10 Science CBSE 2022-2023. NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board NCERT book extra.

Poll

Etaha

Asked: June 19, 2021In: Class 10 Science

In our domestic electric circuit the component which is always connected in series is:

NCERT Important Questions Class 10 Science CBSE 2022-2023. NCERT Book Extra Questions for Session 2022-2023 CBSE Board and UP Board Others state Board NCERT book extra.

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