MCQ
The $IUPAC$ name of $CH_3 -CH = CH -COOH$ is
- ✓But $-2-$ ene $-1-$ oic acid
- BBut $-1-$ ene $-1-$ oic acid
- CBut $-2-$ ene $-1-$ carboxylic acid
- DPropene $-1-$ carboxylic acid
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| List $-I$ (Compounds) | List $-II$ (used in) | ||
| $(A)$ | $BaSO_4 +ZnS$ | $(1)$ | Explosive |
| $(B)$ | $NI_3$ | $(2)$ | Oxidiser in rocket propellants |
| $(C)$ | $N_2O_4$ | $(3)$ | Space capsule |
| $(D)$ | $KO_2$ | $(4)$ | Pigment |
correct statement is