A) I, II and III
B) only I and II
C) only I and III
D) only II and III
Correct Answer: A
Solution :
\[2Al+2NaOH+2{{H}_{2}}O\to \underset{\text{sod}\text{.meta}\,\text{aluminate}}{\mathop{2NaAl{{O}_{2}}}}\,+{{H}_{2}}\]\[2{{F}_{2}}+2NaOH(conc.)\xrightarrow{{}}{{O}_{2}}+4NaF+2{{H}_{2}}O\]\[\underset{(white)}{\mathop{{{P}_{4}}}}\,+3NaOH+3{{H}_{2}}O\to \underset{\text{Sod}\text{.}\,\text{hypophosphite}}{\mathop{3Na{{H}_{2}}P{{O}_{2}}}}\,+\underset{\text{Phosphene}}{\mathop{P{{H}_{3}}}}\,\]So, all the three reactions give gaseous products.You need to login to perform this action.
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