The gas produced by heating ferric sulphate strongly is ________ .
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Q2
SO2 gas may be produced by:
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Q3
The weight of ZnS required to produce 22.4 lits of SO2 at STP is:
[S=32,Zn=65,O=16]
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Q4
Question 9
Which of the following statement is incorrect for a chemical reaction? (a) Heat may be given out but never absorbed. (b) Sound may be produced. (c) A colour change may take place. (d) A gas may be evolved.
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Q5
Even in the absence of group II, colloidal yellowish ppt appears on passing H2S gas; it may be due to the presence of Oxidising agent (like SO2−3,NO−3) .
If the given statement is true enter 1 else enter 0.