Std-10 Most Imp Ch 1 Gseb L-17 રસાયણિક પ્રક્રિયાઑ અને સમીકરણ

S.L. Loney (Ex-17, Q.1 to Q20)

S.L. Loney (Ex-17, Q.1 to Q20)

Suppose the line, L_(1) has equation 10x-12y=-17." The line "L_(2)"intersect "L_(1)" at "((1)/(2),(11)/(6)) and is perpendicular to L_(1). Find the abscissa of the point on L_(2) whose ordinate is (1)/(30).

The mean of the data 1, 2, 10, 18, 3, 17, 19, is A. 7 B. 10 C. 17 D. 70

Calcaulate the molecular weight of HF , if density of HF gas is 3.17 g//L at 300K and 1.0 atm . Comment of the result .

Ionisation constant of CH_(3)COOH is 1.7 xx 10^(-5) and concentration fo H^(+) in certain acetic acid solution is 3.4 xx 10^(-4) M . The concentration of acetic acid solution is

The heat librerated on complete combustion of 1 mole of CH_(4) gas to CO_(2)(g) and H_(2)O(l) is 890 kJ. Calculate the heat evolved by 2.4 L of CH_(4) on complete combustion.

Which oxide produces the most acidic solution when 0.1 mol is added to 1L of H_(2)O ?