NDA Government Jobs Exams

Which one among the following is the correct order the strength of acids ?
(A) H2SO4 > H3PO3 > CH3COOH (B) H2PO3 > H2SO4 > CH3COOH
(C) CH3COOH > H3PO3 > H2SO4 (D) CH3COOH > H2SO4 > H3PO3

Read Solution (Total 0)

NDA Other Question
Which one among the following is a double salt ?
(A) K4[Fe(CN)6] (B) K2SO4Al2(SO4)324H2O
(C) CuSO4.5H2O (D) NaCl Given below is a approximate composition of a substance :
CaO 60-70%
SiO2 20-25%
Al2O2 5-10%
Fe2O3 2-3%
The substance is
(A) Plaster of paris (B) Cement (C) Marble stone (D) Quartz