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How many elements are in a gaseous state at room temperature?

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Important Questions on Is Matter Around Us Pure

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Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 1 - Is Matter Around Us Pure>Target Exercise>Q 18
Malleability with respect to metals is the property 
MEDIUM
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 1 - Is Matter Around Us Pure>Target Exercise>Q 19
Purification of salt that we get from seawater is done by
MEDIUM
Stage 1 & 2
IMPORTANT
Target NTSE Class 10 Stage 1 & 2 Solved Papers (2015 – 19)>Chapter 1 - Is Matter Around Us Pure>Target Exercise>Q 20
The technique used to separate pigments from natural colours is known as