MEDIUM
10th CBSE
IMPORTANT
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The colour of NO2 and PbO formed when lead nitrate is heated are

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Important Questions on Metals and Non-metals

HARD
10th CBSE
IMPORTANT
Silver jewellery acquires blackish due to the formation of _____. Name the compound formed. 
EASY
10th CBSE
IMPORTANT
The property generally not shown by metals is
EASY
10th CBSE
IMPORTANT
Give one word for heating the ore strongly in the presence of an excess of air to liberate SO2.
EASY
10th CBSE
IMPORTANT
Which of the following pairs will give displacement reactions?
EASY
10th CBSE
IMPORTANT
Which of the following methods is suitable for preventing an iron frying pan from rusting? 
EASY
10th CBSE
IMPORTANT
Food cans are coated with tin and not with zinc because
EASY
10th CBSE
IMPORTANT
Which of the following metals will not react with oxygen, even when heated very strongly in air?
MEDIUM
10th CBSE
IMPORTANT
When you place iron nail in copper sulphate solution, the reddish-brown coating formed on the nail is