Tiwari Academy Discussion

Asked: June 20, 2021In: Class 10 Science

State the significance of the following devices in domestic circuits: (i) Main switch (ii) Mains fuse (iii) Electricity meter.

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.

Bhavna

Asked: June 20, 2021In: Class 10 Science

Kapil was feeling proud after the installation of solar water heater on his roof top. He knows that he has contributed towards the conservation of environment. Now answer the following questions:: (i) Write one advantage and one limitation of using a solar water heater. (ii) How has Kapil contributed towards the conservation of environment? (iii) State the values that prompted Kapil’s action.

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.

Bhavna

Asked: June 20, 2021In: Class 10 Science

Differentiate between energy obtained by burning fossil fuels and that obtained as solar energy.

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.

Bhavna

Asked: June 20, 2021In: Class 10 Science

(a) What is tropism? (b) Mention the differences between tropism and nastic movement in tabulated form.

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.

Bhavna

Asked: June 20, 2021In: Class 10 Science

(a) Write three distinguishing features between an alternating current and a direct current. (b) A current through a horizontal power line flows in east to west direction. What is the direction of magnetic field at a point directly below it and at a point directly above it? Name the rule you have applied in this case.

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

Bhavna

Asked: June 20, 2021In: Class 10 Science

After performing the reaction between dil. HCI and sodium carbonate, a student noted the properties of carbon dioxide. Correct observation would be that carbon dioxide 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

Bhavna

Asked: June 20, 2021In: Class 10 Science

The products of reaction between zinc and sodium hydroxide solution are:

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

Bhavna

Asked: June 20, 2021In: Class 10 Science

slaked lime is used for white washing. After two or three days of white washing it gives shiny finish to walls due to the formation of the compound:

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

Bhavna

Asked: June 20, 2021In: Class 10 Science

Raju added a-strip or A1 metal to 5 mL of a solution of ZnSO₄ 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

Bhavna

Asked: June 20, 2021In: Class 10 Science

A part of de-starched leaf of a potted plant was covered with black paper strips on both sides and the plant was kept in sunlight for 8 hours. The leaf was then tested with iodine after boiling it in alcohol. Only the uncovered part of the leaf turned blue black. The inference is that:

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.

State the significance of the following devices in domestic circuits: (i) Main switch (ii) Mains fuse (iii) Electricity meter.

Differentiate between energy obtained by burning fossil fuels and that obtained as solar energy.

(a) What is tropism? (b) Mention the differences between tropism and nastic movement in tabulated form.

After performing the reaction between dil. HCI and sodium carbonate, a student noted the properties of carbon dioxide. Correct observation would be that carbon dioxide is :

The products of reaction between zinc and sodium hydroxide solution are:

slaked lime is used for white washing. After two or three days of white washing it gives shiny finish to walls due to the formation of the compound:

Raju added a-strip or A1 metal to 5 mL of a solution of ZnSO₄ in a test tube. The correct observation made by him for change in colour of solution is:

A part of de-starched leaf of a potted plant was covered with black paper strips on both sides and the plant was kept in sunlight for 8 hours. The leaf was then tested with iodine after boiling it in alcohol. Only the uncovered part of the leaf turned blue black. The inference is that:

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