Std-10 Most Imp Ch 1 Gseb L-9 રસાયણિક પ્રક્રિયાઑ અને સમીકરણ

Ethyoxyethene is written as follows, H_(2)C=CH-O-CH_(2)-CH_(3) . The structure of 2- Chloro -1- ethoxyethene 9 incorrect name ) with correct numbering wil l be

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.

The pH of an aqueous solution of Ba(OH)_(2) is 10 . If the K_(sp) of Ba(OH)_(2) is 1xx10^(-9) , then the concentration of Ba^(2+) ions in the solution in mol L^(-1) is

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

The weight of CH_(4) in a 9L cylinder at 27^(@)C temperature and 16 atm pressure is (R = 0.08 L atm K^(-1) mol^(-1) )

A container of 1.0 L capacity filled with 1.0 mole of ideal gas is connected to an evacuated vessel to 9L. Calculate change in entropy. (R=1.987 cal.)

CFS in Octahedral and Square Plannar Complex || Electronic Configuration From d1 to d10 in Presence OF SFL and WFL for C.N.-6 (Imp) || SCI

The solubility product of BaCl_(2) is 3.2xx10^(-9) . What will be solubility in mol L^(-1)

As box contains 100 pens of which 10 are defective.What is the probability that out of a sample of 5pens drawn one by one with replacement at most one is defective? ((9)/(10))^(5) b.(1)/(2)((9)/(10))^(4) c.(1)/(2)((9)/(10))^(5)d((9)/(10))^(5)+(1)/(2)((9)/(10))^(4)

.The sum to 'n' terms of the series 9 + 99 + 999 ... ... is ] , [ 1) (10 ( 10^ n − 1 ) − n) 2) (10/ 9 [ 10^ n − 1 ] + n) 3) (10/ 9 [ 10^ n − 1 ] − n) 4) (10/ 9 [ 10^ n − 1) ]