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Subject :NSO    Class : Class 7

Match the given chemical reactions with the products listed in the box and select the correct option from the given codes.


P. Mixing magnesium oxide with water
Q. Brown deposit on iron nail kept in copper sulphate solution
R. Carbon dioxide is passed through lime water
S. Absorption of ultraviolet radiations by ozone.

AP-(v), Q-(vii), R-(i), S-(vi)
BP-(iv), Q-(ii), R-(i), S-(iii)
CP-(ii), Q-(iii), R-(viii), S-(vii)
DP-(ii), Q-(iv), R-(viii), S-(vi)


Ans 1:

Class : Class 7

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