Ans28
Dear student,
Please find below the solution to the asked query
Please find below the solution to the asked query
P- used as a preservative- NaCl
Q- used in medicines as well as in fire extinguishers- NaHCO3
R- used as fungicide and in electroplating- CuSO4.5H2O
S- used in fireworks- KNO3
Hence, option (D) is correct.
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