What is rust and chemical formula of rust?

Important Questions on Chemical Reactions and Equations

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 2

When a magnesium ribbon burns in air with a dazzling flame and forms white ash. Is magnesium oxidised or reduced, why?

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 3

Write balanced chemical equation with state symbols for the following reaction: Barium chloride solution reacts with sodium sulphate solution to give an insoluble solid barium sulphate and sodium chloride solution.

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 4

What happens when silver nitrate solution is added to sodium chloride? Write the equation for the reaction which takes place.

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 4

What happens when silver nitrate solution is added to sodium chloride solution? Name the type of reaction involved.

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 5

Why potato chips manufacturers fill the packet of chips with nitrogen gas?

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 6

Why silver articles get tarnished in the presence of air?

MEDIUM

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 7

Explain why in moist air, copper corrodes to produce a green layer on its surface?

EASY

10th CBSE

IMPORTANT

NEW ERA CHEMISTRY Textbook for Class X>Chapter 1 - Chemical Reactions and Equations>MOCK TEST>Q 8

Can we store zinc sulphate in a copper vessel? Explain.