MCQ
Which of the following depict the same ?


- A$1$ and $2$
- B$1$ and $3$
- C$2$ and $3$
- ✓$1, 2,$ and $3$

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Give the structural formula of compound $(B)$
$CaCO _{3( s )}+2 HCl _{( aq )} \rightarrow CaCl _{2( aq )}+ CO _{2( g )}+2 H _{2} O _{( l )}$
[Calculate upto second place of decimal point]