MCQ
Which of the following is $E$ isomer :
- ✓

- B

- C

- D






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$X$ is
Minimum temperature at which it will become spontaneous is ..... $K.$(Integer)
A for precipitate formation reaction.
B for precipitate dissolution reaction.
C for precipitate exchange reaction.
D for no reaction.
${P_4} + NaOH \longrightarrow P{H_3} \uparrow + Na{H_2}P{O_2}$
$(A)$ and $(B)$ are