1.

Solution (s) containing 40 gm NaOH is/are

Answer»

50GM of 80% (w/w) NAOH
50gm of 80% (w/v) NaOH `[d_("SOLN.") = 1.2 gm//m]`
50 gm of 20 NaOH `[d_("soln.") = 1 gm//ml]`
50 gm of 5 m NaOH

Answer :A::C


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