`(H_2N)_(2)CO + X to N_2 + CO_2 + H_2O`
Which nitrogen compound should X be here

In the Ramsay - Rayleigh's second method, 2NO_2 + 2NaOH to NaNO_2 + X + H_2O . Where 'X' is the nitrogen compound, then Oxidation state of nitrogen in 'X' is ___________

For the redox reaction x MnO_(4)^(-) + yH_(2)C_(2)O_(4) + zH^(+) to m Mn^(2+) +n CO_(2) + p H_(2)O The valeu of x, y, m and n are

C_(2)H_(6(g)) + n O_(2) rarr CO_(2(g)) + H_(2)O_((l)) In this equation , the ratio of the coefficients of CO_(2) and H_(2)O is

Some chemical equations are given below 1)C+O_2 rarr CO_2 2)CH_4+2O_2 rarrCO_2+2H_2O 3)N_2+O_2 rarr NO 4)CaCO_3 rarr CaO+CO_2 5)H_2+I_2 rarr HI 6)Fe+HCl rarr FeCl_2+H_2 7)CO_2+C rarr CO Which among these are redox reactions ?

Some chemical equations are given below 1) C+O_2 rarr CO_2 2) CH_4+2O_2 rarrCO_2+2H_2O 3) N_2+O_2 rarr NO 4)CaCO_3 rarr CaO+CO_2 5)H_2+I_2 rarr HI 6)Fe+HCl rarr FeCl_2+H_2 7 )CO_2+C rarr CO Which of these are balanced equations ?

An organic compound is estimated through Dumas method and 1 mole of the compound evolved 6 moles of CO_2 . 4 moles of H_2 O and 1 mole of N_2 gas . The formula of the compound is

N_(2)O_(4), (HPO_(2))_(2), H_(2)CO_(3), SO_(2), SO_(3), P_(4)O_(10) H_(2)SO_(4), N_(2)O_(3), HNO_(3), H_(3)PO_(3) . (a) Among the above compounds, compounds having at least one p pi - p pi bond are x. (b) Among the above compounds, compounds having at least one d pi - p pi bond are y. Given the answer as x + y

Arrange the gases, H_2, CO_2, N_2, O_2 in the decreasing order ..