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Mg + "air" overset("Ignition") rarr A+ ...

`Mg + "air" overset("Ignition") rarr ` A+ B (Insoluble )
`A overset(dil.Hcl)rarrC+Duarr`
`CuO+Doverset(Delta)rarrEuarr`
What is not correct ?

A

`Ba(N_3)2overset(Delta)rarr` Neutral gas

B

`NaNO_32overset(Delta)rarr` Paramagnetic gas

C

`LiNO_(3)overset(Delta)rarr` Acidic and diamganetic gases

D

`Ba(N_3)2overset(Delta)rarr` Coloured paramagnetic gas

Text Solution

Verified by Experts

`5Mg+underset("air")(ubrace(N_2+O_2))overset(Delta)rarrunderset((A))(Mg_(3)N_(2))+underset("insoluble")underset(uarr(B))(MgOdarr)underset((A))(Mg_3N_2)+underset("dil)(6HCl)rarrunderset((C))(3MgCl_2)+underset((D))(2NH_3)uarr3CuO+underset((D))(2NH_3)rarr3Cu+underset((E))(N_2)uarr+3H_2O`
a) `Ba(N_3)_(2)overset(Delta)rarr2Ba+3N_(2)uarr` neutral gas
b) `2NaNO_3overset(Delta)rarr2NaNO_(2)+O_(2)uarr` paramagnetic gas
c) `2LiNO_(3) rarrLi_(2)O+2NO_(2)+1/2O_(2)uarr` acidic , colored and paramagnetic
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Monosaccharides have -CHO (or C=O) and -OH groups, so they undergo usual oxidation and reduction. Further, monosaccharides from osazone when treated with excess of phenylhdrazine (3 equivalents). In osazone formation only the first two carbon atoms are involved. Thus monosaccharidxes having identical configuration on reset of C atoms except first two will form same osazone, as is the case with glucose and fructose. A, B and C are three hexoses and form same osazone D. Compounds A to D behave as below (A) D overset(HCl)rarr underset(CH_(3)COOH)overset(Zn)rarr D - Fructose (B) A overset(Ni.H_(2))rarr overset(HNO_(3))rarr underset(H_(3)O^(+))overset(Na-Hg)rarr B + C (C ) B overset(HNO_(3))rarr Optically active glycaric acid (D) C overset(HNO_(3))rarr Optically inactive glycaric acid Compound B and C, respectively are

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