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Deepak Rock
@deepak-rock
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Joined: Aug 6, 2021
Last seen: Sep 10, 2021
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Topics: 1742 / Replies: 303
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Topic
What is meant by strong acids and weak acids? Classify the following into strong acids and weak acids : HCl, CH3COOH, H2SO4, HNO3, H2CO3, H2SO3
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 121
Topic
What are organic acids and mineral acids? (b) Give two examples each of organic acids and mineral acids. (c) State some of the uses of mineral acids in industry.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 62
Topic
What happens when an acid reacts with a metal oxide? Explain with the help of an example. Write a balanced equation for the reaction involved.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 86
Topic
What happens when an acid reacts with a base? Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 94
Topic
What happens when dilute hydrochloric acid is added to sodium carbonate? Write a balanced chemical equation of the reaction involved. (b) Which gas is liberated when dilute hydrochloric acid reacts with sodium carbonate? How will you test for the pr...
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 295
Topic
What happens when an acid reacts with a metal hydrogen carbonate? Write equation of the reaction which takes place.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 278
Topic
While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 69
Topic
(a) What happens when an acid reacts with a metal? Give chemical equation of the reaction involved. (b) Which gas is usually liberated when an acid reacts with a metal? How will you test for the presence of this gas?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 70
Topic
What is an olfactory indicator? Name two olfactory indicators. What is the effect of adding sodium hydroxide solution to these olfactory indicators?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 76
Topic
What is an indicator? Name three common indicators. (b) Name the acid-base indicator extracted from lichen.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 72
Topic
Acids have a…………….. taste and they turn…………… litmus to………………. (b) Substances do not show their acidic properties without……………….
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 68
Topic
Complete and balance the following chemical equations : (a) Zn (s) + HCl (aq) → (b) Na2CO3 (s) + HCl (aq) →
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 101
Topic
Write word equations and then balanced equations for the reactions taking place when: (a) dilute sulphuric acid reacts with zinc granules. (b) dilute hydrochloric acid reacts with magnesium ribbon.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 281
Topic
How is the concentration of hydronium ions (H3O^+) affected when the solution of an acid is diluted?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 126
Topic
Name one animal and one plant whose stings contain formic acid (or methanoic acid).
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 92
Topic
Name one natural source of each of the following acids : (a) Citric acid (b) Oxalic acid (c) Lactic acid (d) Tartaric acid
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 106
Topic
Give the names and formulae of two strong acids and two weak acids.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 335
Topic
Name the gas evolved when dilute HCl reacts with sodium hydrogen carbonate. How is it recognised?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 155
Topic
How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal?
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 97
Topic
When a solution is added to vanilla extract, then the characteristic smell of vanilla cannot be detected. State whether the given solution is an acid or a base.
4 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 61
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