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Which laboratory results will tell whether an unknown white solid is NaOH or NH4NO3? — Laboratory Chemistry Question

Question

Which laboratory results will tell whether an unknown white solid is NaOH or NH4NO3?

A.

NaOH is soluble in H2O but NH4NO3 is not.

B.

Aqueous NaOH turns litmus blue but NH4NO3 does not.

✓ Correct
C.

Aqueous NaOH reacts with copper metal but NH4NO3 does not.

D.

NaOH gives a green flame test but NH4NO3 is colorless in a flame.

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