Home
Class 12
CHEMISTRY
{:(Na(2)B(4)O(7),+,H(2)SO(4),rarr,A,over...

`{:(Na_(2)B_(4)O_(7),+,H_(2)SO_(4),rarr,A,overset(H_(2)O)rarr,,),(,,,,,,darr,),(,,,,,D overset(Na)rarr C,,):}`
`D overset(Na)larr overset(darr)C`
The incorrect statement regarding substance 'D' is

A

D' will not react with `HCl`

B

D' will not react with dil `H_(2)SO_(4)`

C

D' will react with conc. `H_(2)SO_(4)` to form substance 'B'

D

D' will react with conc. `H_(2)SO_(4)` to form substance 'A'

Text Solution

Verified by Experts

The correct Answer is:
D

`:.` Boron does not react with `HCl`, dil `H_(2)SO_(4)` but react with conc. `H_(2)SO_(4)` to form `H_(3)BO_(3)` ltBrgt `2B + underset(("conc"))3H_(2)SO_(4) rarr 2h_(3)BO_(3) + 3SO_(2)`
Promotional Banner

Similar Questions

Explore conceptually related problems

overset("Conc". H_(2)SO_(4))rarr(A)

SiCl_(4)overset(H_(2)O)rarr(A)overset("Heat")rarr (B) overset(Na_(2)CO_(3))underset("Heat")rarr(C ) , The compound (C ) is

C_(2)H_(4) overset(Br_(2))rarr X overset(KCN)rarr Y, Y is

C_(2)H_(2) underset( H_(2)SO_(4))overset( Hg(OH)_(2) 1%) (rarr) A overset( [O])(rarr) B , B is :

overset("SOCl"_(2))(rarr) (A) overset("KCN")(rarr) (B) overset(H^(+))(rarr) (C ), the compound (C ) is

C_(2)H_(5)OHoverset(PCl_(5))rarr(A)overset(KCN)rarr(B)overset(H_(3)O^(+))rarr(C)overset(NH_(3))rarr(D)overset("heat")rarr(E) Identify the products

H-C-=C-H underset(H_(2)SO_(4))overset(HgSO_(4))(rarr)overset("dil.NaOH")(rarr)overset(Delta)(rarr)P . The final product P is

Phenol overset("(i) NaOH")underset("(ii) "CO_(2))rarr(A)overset(H^(+)//H_(2)O)rarr (B)overset(Ac_(2)O)rarr(C) In this reaction , identify the incorrect statement?

underset(("Monosubsitituted benzene"))(P)overset(Na(Hg))underset(+conc. H_(2)SO_(4))rarr Q overset(NaNO_(2))underset(+HCl.0^(@).5^(@)C)rarr R overset(KCN)underset(CuCN)rarr S overset(SnCl_(2))underset(HCl)rarr T Correct statement are :

overset(Br_(2))underset(hv)rarr (A) overset("alc. KOH")rarr (B) overset(OsO_(4))rarr (C ) overset(HlO_(4))rarr(D)," Identify 'D'"