MCQ
Lassaigne’s test is used to detect
- ANitrogen and halogens
- BSodium and halogens
- CHalogens and sulphur
- ✓All of the above
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$n$ $l$ $m_1$ $m_2$
$(ii)$ Number of cyclic structural isomers with molecular formula $C_5H_{10} = Y$
$(iii)$ Number of ether with $M.F. C_4H_{10}O = Z ;X + Y + Z$ is

$(I) 0.5\ mole$ of $O_3$ $(II) 0.5\ gm$ atom of oxygen $(III) 3.011 \times 10^{23}$ molecules of $O_2$ $(IV) 5.6\ litre$ of $CO_2$ at $STP$
