MCQ
Which of following is correct ?
- ✓Boiling point $ \Rightarrow $ $n-$ pentane $>$ diethyl ether
- BSolubility in water $ \Rightarrow $ $n-$ Butyl alcohol $>$ isobutyl alcohol
- C

- D



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$(A)$ Line emission spectra are used to study the electronic structure
$(B)$ The emission spectra of atoms in the gas phase show a continuous spread of wavelength from red to violet
$(C)$ An absorption spectrum is like the photographic negative of an emission spectrum
$(D)$ The element helium was discovered in the sun by spectroscopic method
$Xe{F_6}\,\xrightarrow{{ + {H_2}O}}A\,\xrightarrow{{ + {H_2}O}}B\,\xrightarrow{{ + {H_2}O}}C$