Aadarsh kumar

Asked: October 18, 2020In: Class 10

Why do we apply paint on iron articles?

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-18

Aadarsh kumar

Asked: October 18, 2020In: Class 10

Oil and fat containing food items are flushed with nitrogen. Why?

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-19

Aadarsh kumar

Asked: October 18, 2020In: Class 10

Explain the following terms with one example each.

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-20 (a) Corrosion (b) Rancidity

Aadarsh kumar

Asked: October 18, 2020In: Class 10

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Intext Questions Page No-2 Questions No-1

Aadarsh kumar

Asked: October 18, 2020In: Class 10

Why should curd and sour substances not be kept in brass and copper vessels?

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Intext Questions Page No-6 Questions No-1

Aadarsh kumar

Asked: October 18, 2020In: Class 10

Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

NCERT Solution for Class Tenth Science Chapter 2 Acids, Bases and Salts Intext Questions Page No-6 Questions No-2

Aadarsh kumar

Asked: October 18, 2020In: Class 10

A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-17

Aadarsh kumar

Asked: October 18, 2020In: Class 10

Explain the following in terms of gain or loss of oxygen with two examples each.

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-16 (a) Oxidation (b) Reduction

Aadarsh kumar

Asked: October 18, 2020In: Class 10

What do you mean by a precipitation reaction? Explain by giving examples.

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-15

Aadarsh kumar

Asked: October 18, 2020In: Class 10

In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.

NCERT Solution for Class 10 Science Chapter 1 Chemical Reactions and Equations Exercises Questions Page No-16 Questions No-14

Aadarsh kumar

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