Xylem translocates (a) water, mineral salts, some organic nitrogen and hormones (b) water only (c) water and mineral salts only (d) water, mineral salts and some organic nitrogen only.

Xylem translocates
(a) water, mineral salts, some organic nitrogen and
hormones
(b) water only
(c) water and mineral salts only
(d) water, mineral salts and some organic nitrogen
only.
by

1 Answer

Answer :

(a) water, mineral salts, some organic nitrogen and
hormones
by

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0.257g of organic substance was heated with conc. sulphuric acid and then distilled with excess of strong alkali .the ammonia gas evolved was absorbed in 50ml of .1M HCl which required 23.2ml of c for neutralization at the end of the process. Determine the % of nitrogen in the compound ?

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Last Answer : A. Vol of 0 .1M HCl taken = 50ml Vol of .1MNaOH used for neutralization of unused acid=23.2ml Now, 23.2 ml of .1MNaOH =23.2ml of .1MHCl Vol of .1MHCl unused=23.2ml Vol of .1MHCl required ... NH3 solution contain nitrogen = 14*26.8/10*1000 Percentage of Nitrogen=14*26.8*100/10*1000*.257 =14.6%

Why is an organic compound fused with Sodium for testing nitrogen,halogens and sulphur ?

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