Jaclin

Asked: December 15, 2020In: Class 10 Science

What is rancidity? write two ways by which it can be prevented.

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: 5

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Asked: December 15, 2020In: Class 10 Science

Give One example of each: Chemical reaction showing change in temp.

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: 4 Part: c

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Asked: December 15, 2020In: Class 10 Science

Give One example of each: Change in substances’ color during a chemical 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: 4 Part: b

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Asked: December 15, 2020In: Class 10 Science

Give One example of each: Chemical reaction showing evolution of gas.

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: 4 Part: a

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Asked: December 15, 2020In: Class 10 Science

Identify the type of reactions taking place in each of following cases and write the balanced chemical equation for the reactions. (a) Zn reacts with silver nitrate to produce zinc nitrate and silver. (b) Potassium iodine reacts with lead nitrate to produce potassium nitrate and lead iodide.

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: 19

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Asked: December 15, 2020In: Class 10 Science

2 gm of silver chloride is taken in china dish, and china dish is placed in sunlight for sometime. What will be your observation. Write the balanced chemical equation for above reaction 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: 18

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Asked: December 15, 2020In: Class 10 Science

Decomposition reactions require energy either in form of heat and light a electricity for breaking down of reactions. Write one equation for each type of decomposition reaction where heat, light or electricity is used as form of energy.

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: 17

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Asked: December 15, 2020In: Class 10 Science

When potassium Iodide solution is added to a solution of lead nitrate in test tube, a precipitate is formed. (i) State the colour precipitate (ii) Name the compound precipitated. (iii) Write balanced equation for chemical 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: 16

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Asked: December 15, 2020In: Class 10 Science

A metal strips X is dipped in blue coloured salt solution YSO₄. After some time, a layer of metal ‘Y’ Is formed on metal strips X. Metal X is used is galvanization whereas metal Y is used for making Electric wires. (a) what could be metal X and Y? (b) Name the Metal salt YSO₄. (C) What Type of Chemical reaction takes place between X and YSO₄? Write the balanced chemical equation.

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: 15

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Asked: December 15, 2020In: Class 10 Science

A metal salt mx when exposed to light split up to form metal metal M and gas X₂. metal m is used to make ornaments whereas gas X₂ is used to make ornaments whereas gas X₂ is used in making bleaching Powder. The salt MX is used in black & white photography. (a) Identify the metal M and Gas X₂. (b) Identify MX. (c) Write down the chemical reaction when salt MX is exposed to sunlight.

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

Jaclin

What is rancidity? write two ways by which it can be prevented.

Give One example of each: Chemical reaction showing change in temp.

Give One example of each: Change in substances’ color during a chemical reaction.

Give One example of each: Chemical reaction showing evolution of gas.

Identify the type of reactions taking place in each of following cases and write the balanced chemical equation for the reactions. (a) Zn reacts with silver nitrate to produce zinc nitrate and silver. (b) Potassium iodine reacts with lead nitrate to produce potassium nitrate and lead iodide.

2 gm of silver chloride is taken in china dish, and china dish is placed in sunlight for sometime. What will be your observation. Write the balanced chemical equation for above reaction and identify the type of reaction.

Decomposition reactions require energy either in form of heat and light a electricity for breaking down of reactions. Write one equation for each type of decomposition reaction where heat, light or electricity is used as form of energy.

When potassium Iodide solution is added to a solution of lead nitrate in test tube, a precipitate is formed. (i) State the colour precipitate (ii) Name the compound precipitated. (iii) Write balanced equation for chemical reaction.

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