Std 8 gujarati ch 8 dikarano marnar / standard 8 gujarati ch 8 swadhyay / dhoran 8 gujarati path 8

The enthalpy change of the reaction C_3H_8(g)+H_2(g) rarr C_2H_6(g)+CH_4(g) , at 25^@ , will be Given that: heat of combustion values under standard condition (The standard heat of formation of C_3H_8(g) is -103.8kJ/mol)

Find the variance and standard deviation of the random variable X whose probability distribution is given below : {:(x,0,1,2,3),(P(X=x),1/8,3/8,3/8,1/8):}

If +8 means 8 units forward, then -8 means 8 units

What is the common difference of an A.P. 8 1/8, 8 2/8, 8 3/8 ,………..

Represent 0/8a n d8/8 on a number line.

8 cot^2A-8 cosec^2A is equal to a) 8 b) 1/8 c) -8 d) - 1/8

Evaluate : ( 7/8 times 7/8 - 1/8 times 1/8 ) ÷ ( 7/8 times 1/8 ) =

C_8H_8O + CH_3CH_2MgBr to (A) overset(Lucas reag ent)to(B) Instant turbidity . Identify product B.

Evaluate : 9/8 times 8/7 ÷ 8/7 + 4/8 + 9/8 times 8/7 times 7/8 + 4/8

8/18 - 8/15 = 8/3