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Byju's Answer
Standard VIII
Chemistry
Exceptions in physical properties
is a non-meta...
Question

____ is a non-metal existing in powder form and is bright yellow in colour.

A

Phosphorous

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B
Sulphur
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C
Pottasium
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D
Copper sulphate
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Solution

The correct option is B Sulphur
Sulphur is a non-metal existing in powder form and is bright yellow in colour.

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The non-metal which occurs as a yellow powder is _____


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(a) a green coloured carbonate.
(b) a steel grey coloured solid non-metal.
(c) a nitrate which has no water of crystallization.
(d) a sulphate insoluble in water.
Q.

Fill in the following balnks with suitable words:

(a) Metals are ........................... conductors of heat and ............................

(b) Most non-metals are ........................... conductors of heat and ...........................

(c) Phosphorous is a very ........................... non-metal.

(d) Metals react with acids to produce ........................... gas.

(e) Iron is more ........................... than copper.

(f) Metals form ........................... oxides whereas non-metals form ........................... oxides.

(g) Sulphur forms ........................... oxide whereas magnesium forms ........................... oxide.

(h) A non-metal is used to make an antiseptic solution called tincture ...........................

Q. A greenish yellow gas burns in a rotten egg smelling gas giving an acidic gas and a yellow coloured non metal. Write the balanced chemical equation of the reaction.
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