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List in tabular form two differences between an acid and a base based on their chemical properties
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0
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3932
|
March 16, 2018
|
|
. What is an olfactory indicator? Name two such indicators
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0
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6289
|
March 16, 2018
|
|
During the reaction of some metals with dilute hydrochloric acid, following observations were made
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0
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7004
|
March 16, 2018
|
|
Crystals of copper sulphate are heated in a test tube for some time
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0
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11345
|
March 16, 2018
|
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What happens when zinc granules are treated with dilute solution
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0
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2969
|
March 16, 2018
|
|
With the help of an activity explain that hydrogen and oxygen are released when an electric current is passed through water
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0
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10156
|
March 16, 2018
|
|
Give the characteristic tests for the following gases:
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0
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8280
|
March 16, 2018
|
|
Consider the chemical equation given below and answer the questions that follow:
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0
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3336
|
March 16, 2018
|
|
Identify the type of reaction in the following examples:
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0
|
859
|
March 16, 2018
|
|
Identify the type of chemical reaction taking place
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0
|
2051
|
March 16, 2018
|
|
Write the balanced chemical equation when X is dissolved in water
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0
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4841
|
March 16, 2018
|
|
Solid calcium oxide was taken in a container and water was added slowly to it
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0
|
16990
|
March 16, 2018
|
|
What is observed when a solution of potassium iodide is added to a solution of lead nitrate taken in a test tube?
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0
|
7750
|
March 15, 2018
|
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Identify the oxidising agent (oxidant) in the following reactions
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0
|
4042
|
March 15, 2018
|
|
What is the colour of ferrous sulphate crystals?
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0
|
2485
|
March 15, 2018
|
|
What happens when silver nitrate solution is added to sodium chloride solution?
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0
|
5767
|
March 15, 2018
|
|
Translate the following statements into chemical equations and then balance the equations:
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0
|
3188
|
March 15, 2018
|
|
Name the type of chemical reaction represented by the following equation:
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|
0
|
2187
|
March 15, 2018
|
|
Translate the following statements into chemical equations and balance them:
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|
0
|
3461
|
March 15, 2018
|
|
What is the role of a catalyst in a chemical reaction?
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0
|
1895
|
March 15, 2018
|
|
Identify the reducing agent in the following reactions
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0
|
2301
|
March 15, 2018
|
|
A copper coin was kept dipped in silver nitrate solution for a few hours/days
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0
|
8712
|
March 15, 2018
|
|
Grapes hanging on the plant do not ferment but after being plucked from the plant can be fermented. Under what conditions do these grapes ferment?
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0
|
1204
|
March 15, 2018
|
|
Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction
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0
|
8026
|
March 15, 2018
|
|
On adding dilute HC1 to copper oxide powder, the solution formed is blue- green
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0
|
13436
|
March 15, 2018
|
|
Complete the missing components/variables given as ,x and y in the following reactions:
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0
|
3621
|
March 15, 2018
|
|
What type of chemical reactions are represented by the following equations?
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0
|
3725
|
March 15, 2018
|
|
What happens when silver chloride is exposed to sunlight?
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0
|
13213
|
March 15, 2018
|
|
Give reasons :Aluminium is a reactive metal but is still used for packing food articles
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0
|
2081
|
March 15, 2018
|