Std-10 Most Imp Ch 1 Gseb L-14 રસાયણિક પ્રક્રિયાઑ અને સમીકરણ

S.L. Loney (Ex-14 Q 1-20)

S.L. Loney (Ex-14 Q 1-20)

If L for +, M stand for - , N stands for xx, P stands for +, then 14 N 10 L 42 P 2 M 8= ?

If 'L' stands for '+', 'M' stands for '-' N stands for 'xx' , P stands for '-:' then 14 N 10 L 42 P 2 M 8 = ?

What comes next in the given series? 6C, 10F 14I 18L, ?

Find, volume of a cube of side a = 1.4 xx (10^-2) m.

The weight of ethyl alcohol which must be added to 1.0 L of water so that the solution will freeze at 14^@F is (K_f of water = 1.86 K kg mol^(-1) )

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 ?