Multiple choice question

(b) All compounds of sodium are electrovalent and soluble in water.
(c) By reacting with sodium metal organo metallic compounds are obtained.
(d) Test become easier from sodium extract.
5 izHkkth fØLVyu fof/k }kjk nks vFkok vf/kd ;kSfxdksa dk i`Fkddj.k fuHkZj
djrk gS\
(a) ;kSfxd ds ?kuRo ij (b) ;kSfxd dh ok"i'khyrk ij
(c) ;kSfxd dh foys;rk ij (d) ;kSfxdks ds fØLVyh; vkdkj ij
Seperation of two or more compounds seperation through fractional
crystalization method depends on–
(a) Density of compound (b) Vapourization of compound
(c) Solubility of compound (d) Crystal size of compound
6 ,uhyhu dks 'kq) fd;k tkrk gS&
(a) lk/kkj.k vklou }kjk (b) Å?kZikru }kjk
(c) eki vklou }kjk (d) ok"iu }kjk
Aniline is purified by the method–
(a) Simple distilation (b) Sublimation
(c) Steam distillation (d) Vapourization
7 fXyljkWy dqN fo?kfVr gksdj 290°C ij mcyus yxrk gS vr% v'kq)
fXyljkWy dks 'kq) fd;k tkrk gS&
(a) fuokZr vklou }kjk (b) eki vklou }kjk
(c) foyk;d esa ?kksydj (d) NUud esa Nkudj
Glycerol is decomposed partially and boils at 290°C hence its purification
is done by–
(a) Vaccum distillation (b) Steam distillation
(c) By disolution in solvent (d) By filtering through filter paper
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