B. FILL IN THE BLANKS :
1.............gas gives rotten egg smell.
2. Litharge is .................. in colour.
3. Precipitate is an................ residue formed.
4. Chemical reactions that absorb energy are called...............
5. Carbon reacts with sulphur to form.................
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Answer:
1st nitrogen
2nd red
3rd less
4th exothermic
5thco2so4
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