Changes in Matter Worksheet-1
(a) Neutralization reaction
(b) Exothermic reaction
(c) Double decomposition reaction
(d) All of these
(a) is a chemical change
(b) is more common in coastal areas
(c) involves the formation of iron sulphate
(d) involves the formation of iron chloride
(a) Absorb heat
(b) Give out heat
(c) Depends on the room temperature
(d) None of these
(a) Solids, liquids and gases
(b) Solids, liquids, gases and plasma
(c) Gases, solids and plasma
(d) None of these
(a) Attraction between molecules is strong and they vibrate by changing their position
(b) Attraction between molecules is strong and they vibrate about a fixed position
(c) Attraction between molecules is weak and they do not vibrate strongly.
(d) Attraction between molecules is weak and they vibrate strongly.
(a) Reversible
(b) Irreversible
(c) Changes involving formation of one or more new substances
(d) Irreversible Changes involving formation of one or more new substances
(a) Have a definite geometric shape
(b) Has blue colour
(c) Having molecules arranged in a repetitive pattern
(d) All of these
(a) Simple elements combine to form compounds
(b) A compound is broken into simpler substances
(c) Application of energy is not required
(d) Heat is released
(a) More than two metals are mixed
(b) Only two metals are mixed
(c) Two or more metals are mixed in a fixed ratio
(d) None of these
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