Four reaction are given below
(i) `2Li+2H_(2)Orarr2LiOH+H_(2)`
(ii) `2Na+2H_(2)Orarr2NaOH+H_(2)`
(iii) `2LiNO_(3)overset(Heat)(rarr)2LiNO_(2)+O_(2)`
(iv) `2NaNO_(3)overset(Heat)(rarr)2NaNO_(2)+O2`
Which of the above, if any, is wrong

i) 2H_(2)O overset("Electricity")rarr 2H_(2)+O_(2) ii) 2AgBr overset("hv")rarr 2Ag+Br_(2) The above reactions are examples for …………………

"Phenol "overset(NaNO_(2)//H_(2)SO_(4))rarr B overset(H_(2)O)rarr C overset(NaOH)rarr D Name of the above reaction is

Given two reaction, describe them (i) Na_(2)CO_(3)+2H_(2)Orarr2NaOH+H_(2)CO_(3) (ii) CuSO_(4)+5H_(2)OrarrCuSO_(4).5H_(2)O

Given two reaction, describe them (i) Na_(2)CO_(3)+2H_(2)Orarr2NaOH+H_(2)CO_(3) (ii) CuSO_(4)+5H_(2)OrarrCuSO_(4).5H_(2)O

Three reactions involving H_(2)PO_(4)^(-) are given below : (i) H_(3)PO_(4)+H_(2)Orarr H_(3)O^(+)+H_(2)PO_(4)^(-) (ii) H_(2)PO_(4)^(-)+H_(2)OrarrHPO_(4)^(2-)+H_(3)O^(+) (iii) H_(2)PO_(4)^(-)+OH^(-)rarr H_(3)PO_(4)+O^(2-) In which of the above does H_(2)PO_(4)^(-) act as an acid?

2AgNO_(3)+2NaOH to Ag_(2)O darr+2NaNO_(3)+H_(2)O

2AgNO_(3)+2NaOH to Ag_(2)O darr+2NaNO_(3)+H_(2)O

For which of these process is the value of DeltaH negative (i) N_(2)+O_(2) rarr 2NO (ii) N_(2)+3H_(2) overset(Fe+MO)(rarr) 2NH_(3) (iii) 2SO_(2)+O_(2) overset(V_(2)O_(5))(rarr) 2SO_(3) (iv) H_(2)+I_(2) overset(pt)(rarr) 2HI

In the reaction H_(2) O _(2(aq)) overset(I^(-))(rarr)H_(2) O_((l)) + 1/2 O_(2("g")), where I^(-) is