MEDIUM
10th CBSE
IMPORTANT
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When we start heating, a mixture of sulphur powder and iron fillings, we would observe that 
 

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Important Questions on Chemical Reactions and Equations

MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 12
The colour of NO2 and PbO formed when lead nitrate is heated are:
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 13
When an iron nail rubbed with sandpaper is dipped in copper sulphate solution, we observe that copper gets deposited
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 14
Rahul adds an aqueous solution of barium chloride to an aqueous solution of sodium sulphate. He would observe that
EASY
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 15

What is the type of the reaction between sodium sulphate and barium chloride?

MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 16

A student while heating solid lead nitrate taken in a test tube would observe:

MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 17
When zinc reacts with dilute hydrochloric acid
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 18
10 mL of freshly prepared iron sulphate was taken in each of the four test tubes. Strips of copper, iron, zinc and aluminium were introduced in different test tubes. A black residue was obtained in two of them. The right pair of metals forming the precipitates is
 
MEDIUM
10th CBSE
IMPORTANT
PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 1 - Chemical Reactions and Equations>PRACTICAL SKILL BASED MCQs>Q 19

A strip of copper was placed in a beaker containing zinc sulphate solution. On observing the strip the next day, it was noticed that.