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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
AllTopicsReplies
Topic
What is the common name of (a) NaHCO3 and (b) Na2CO3.10H2O?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 273
Topic
Which compound is used as an antacid in medicine: NaHCO3 or Na2CO3?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 273
Topic
Name the metal whose carbonate is known as washing soda.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 271
Topic
Name an acid which is present in baking powder.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 151
Topic
Name a metal carbonate which is soluble in water.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 321
Topic
Name a sodium compound which is a constituent of many dry soap powders.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 263
Topic
Name a calcium compound which hardens on wetting with water.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 257
Topic
Name the product formed when Cl2 and H2 produced during the electrolysis of brine are made to combine.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 219
Topic
What is the commercial name of calcium sulphate hemihydrate?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 247
Topic
With which substance should chlorine be treated to get bleaching powder?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 97
Topic
State the common and chemical names of the compound formed when plaster of Paris is mixed with water.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 291
Topic
What would be the colour of litmus in a solution of sodium carbonate?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 287
Topic
Which of the following salt has a blue colour and why? CuSO4.5H2O or CuSO4
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 309
Topic
State whether the following statement is true or false: Copper sulphate crystals are always wet due to the presence of water crystallisation in them.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 344
Topic
Write the chemical formula of (i) soda ash, and (ii) sodium carbonate decahydrate.
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 208
Topic
What is the chemical formula of (a) baking soda, and (b) washing soda?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 270
Topic
A group of students measured the pH of some substances they found in their homes. Their results are given in the following table :
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 117
Topic
Explain why the pH in a person’s mouth becomes lower after each meal. (b) What damage could be caused while the pH is low?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 88
Topic
A first-aid manual suggests that vinegar should be used to treat wasp stings and baking soda for bee stings. What does this information tell you about the chemical nature of: (a) wasp stings? (b) bee stings?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 87
Topic
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red. (a) What will be the action of solution A on litmus?
3 years ago
Forum
Acids, bases and salt
Replies: 0
Views: 111
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