Jaclin

Asked: December 15, 2020In: Class 10 Science

who do copper vessels lose shine when exposed to air?

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 14

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Asked: December 15, 2020In: Class 10 Science

What Changes do you observe in the iron nails and colour of copper sulphate, if iron nails are dipped in CuSO₄ solution for 15 minutes ?

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 11

Rahul Singh

Asked: December 15, 2020In: Class 10 Maths

Prove that the following is irrational: 1/√2

Real Numbers, NCERT Solutions for Class 10 Maths Chapter 1 Important NCERT Questions Real Numbers NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 1.3 Page No:14 Questions No:3 Part 1

Rahul Singh

Asked: December 15, 2020In: Class 10 Maths

Check whether 6ⁿ can end with the digit 0 for any natural number n.

NCERT Solutions for Class 10 Maths Chapter 1 Important NCERT Questions Real Numbers NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 1.2 Page No:11 Questions No:5

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Asked: December 15, 2020In: Class 10 Science

In the reaction CuO (s) + H₂ (g) → Cu(s) + H₂O (g) (a) Name the oxidized substance. (b) Name the reduced substance. (c) Name the oxidized substance.

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 11

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Asked: December 15, 2020In: Class 10 Science

In electrolysis of water: Why are few drops of dil. H₂SO₄ added to water?

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 10 Part: C

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Asked: December 15, 2020In: Class 10 Science

In electrolysis of water: (a) Name, the gas collected at cathode and anode. (b) Why is volume of one gas collected at one electrode is double of the another.

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 10

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Asked: December 15, 2020In: Class 10 Science

What is redox reaction ? write down a chemical reaction representing it.

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 9

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Asked: December 15, 2020In: Class 10 Science

What happens when Zn strips is dipped is CuSO₄ Solution? Give equation and identify the type of reaction.

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 8

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Asked: December 15, 2020In: Class 10 Science

A Small amount of Ferrous sulphate is heated in hard glass Tube. (a) write chemical equation. (b) what type of reaction is taking place.

NCERT Solutions for Class 1 Science Chapter 1 Important Board Questions Chemical Reactions and Equations NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Type Question Questions No: 7

Jaclin

who do copper vessels lose shine when exposed to air?

What Changes do you observe in the iron nails and colour of copper sulphate, if iron nails are dipped in CuSO₄ solution for 15 minutes ?

Prove that the following is irrational: 1/√2

Check whether 6ⁿ can end with the digit 0 for any natural number n.

In the reaction CuO (s) + H₂ (g) → Cu(s) + H₂O (g) (a) Name the oxidized substance. (b) Name the reduced substance. (c) Name the oxidized substance.

In electrolysis of water: Why are few drops of dil. H₂SO₄ added to water?

In electrolysis of water: (a) Name, the gas collected at cathode and anode. (b) Why is volume of one gas collected at one electrode is double of the another.

What is redox reaction ? write down a chemical reaction representing it.

What happens when Zn strips is dipped is CuSO₄ Solution? Give equation and identify the type of reaction.

A Small amount of Ferrous sulphate is heated in hard glass Tube. (a) write chemical equation. (b) what type of reaction is taking place.

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