Which of the following type of coal has the lowest proportion of volatile matter ?
1). Lignite
2). Peat
3). Bituminous
4). Anthracite
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1. The length of double bond is _______ than single bond.
2. Water gas is the mixture of
3. The National Chemical Laboratoly (India) is located in
4. Diamond is harder than graphite because of
5. Cloud is a colloidal dispersion of
6. Uraninite is an ore/mineral of _______.
7. The luster of a metal is due to
8. An example of major air pollutant is
9. Question 1.10:Give the significance of a ‘lattice point’.