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BidishaKashayap1333
@bidishakashayap1333
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Joined: Oct 11, 2021
Last seen: Jul 27, 2023
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Topics: 2174 / Replies: 0
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Topic
The element which is not common between the compounds called baking soda and soda ash is: (a) Sodium (b) Hydrogen (c) Oxygen (d) Carbon
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 171
Topic
Which of the following is not a mixture? (a) Kerosene (b) Air (c) Alcohol (d) Petrol
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 103
Topic
One of the following substances is neither good conductor of electricity nor an insulator. This substance is
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 90
Topic
Which of the following are compounds? (i) CO (ii) No (iii) NO (iv) Co
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 89
Topic
Which of the following is not an element? (a) Graphite (b) Germanium (c) Silica (d) Silicon
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 112
Topic
(a) What are the three general classes of matter? Give one example of each type. (b) Draw a flow chart for the schematic representation of different types of matter.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 207
Topic
What is a mixture? Give two example of mixtures. (b) What is meant by (i) homogeneous mixtures, and (ii) Heterogeneous mixtures?
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 233
Topic
What are (i) metals (ii) non-metals, and (iii) metalloids? Give two examples each of metal, non-metals and metalloids. (b) Classify the following into metals, non-metals and metalloids:
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 116
Topic
What is meant by (i) elements (ii) compound, and (iii) mixtures? Write down the names of two elements, two compounds and two mixtures.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 227
Topic
State the main points of difference between homogeneous and heterogeneous mixtures. (b) Classify the following materials as homogeneous mixtures and heterogeneous mixtures.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 181
Topic
Which of the following are not compounds? Chlorine gas, potassium chloride, Iron powder, Iron sulphide, Aluminium foil, Iodine vapour, Graphite, Carbon monoxide, Sulphur powder, Diamond
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 264
Topic
Name a metal: (a) Which can be easily cut with a knife (b) Which forms amalgams (c) Which has no fixed shape
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 265
Topic
Name a non-metal: (a) Which is lustrous? (b) Which is required for combustion?
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 103
Topic
You are given two liquids, one a solution and the other a compound. How will you distinguish the solution from the compound?
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 213
Topic
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 232
Topic
Explain why, a solution of salt in water is considered a mixture and not a compound.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 107
Topic
List five characteristics by which compounds can be distinguished from mixtures.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 129
Topic
State two reasons for supposing that brass is a mixture and not a compound.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 119
Topic
Define a mixture. Give two points of evidence to show that sugar solution is a mixture.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 215
Topic
Define a compound. Give two points of evidence to show that sodium chloride is a compound.
4 years ago
Forum
Is Matter Around Us Pure
Replies: 0
Views: 247
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