In \( III ^{ rd } \) group of salt analysis for cations \( NH _{4} Cl \) and \( NH _{4} OH \) are added as group reagents. Which of the following can be used instead of \( NH _{4} Cl \) ? (a) \( NaCl \) (b) \( \left( NH _{4}\right)_{2} SO _{4} \) (c) \( \left( NH _{4}\right)_{2} C _{2} O _{4} \) (d) \( NH _{4} NO _{3} \)

Correct Answer - C `2AB_(2)iff2AB +B_(2)` `"1 0 0"` `"1-x x "x//2` Total moles at equilibrium = `1 + (x)/(2)` `k_(p)=(((x)/(1+x//2)xxP)^(2)((x//2)/(1+x//2)xxP))/(((1-x)/(1+x//2)xxP)^(2)), k_(p)=(x^(3)P)/(2) " , "x^(3)=(2k_(p))/(P)implies x=((2k_(p))/(P))^(1//3)`

`PCl_(3), SOCl_(2) and PCl_(5), SOCl_(2)` is the best reagent because the products of the reaction besides acyl chloride are `SO_(2)` and HCl which are gases and easily separated

Correct Answer - `6.01xx10^(23);`

Correct answer is (D) NaHCO3

(i) out-group (ii) Voluntary group (iii) secondary (iv) reference group (v) Customary (vi) Mores

Matrix A \(=\begin{bmatrix}1&3\\4&1\end{bmatrix}_{2\times2}\) |3 A'| = 2 \(A'=\begin{bmatrix}1&4\\3&1\end{bmatrix}_{2\times2}\) We know that ⇒ |K A| = (K)3 |A| ⇒ |3 A'| = 32 |A'| \(A'=\begin{bmatrix}1&4\\3&1\end{bmatrix}\) ⇒ |A'| = 1 x 1 - 4 x 3 ⇒ 1 - 12 = -11 ⇒...

I want answer

Correct answer is:- (c) 29 Explanation:-  1/2-2 + 1/3-2 + 1/4-2 = 22 + 32 + 42 (x-1 = 1/x) = 4 + 9 + 16  = 29 

1. Qualitative analysis deals with the detection of the presence or absence of elements in compounds and of chemical compounds in mixtures. 2. Quantitative analysis deals with the determination of the...

Correct answer is (b) We know that \(\tau\) = r × F ∵ \(\tau\) \(= \frac{dL}{dt},\) \(F = \frac{dP}{dt}\) \(\left(\frac{dL}{dt}\right) = r \times \left(\frac{dP}{dt}\right)\) \(\left(\frac{dL}{dt}\right) - r \times \left(\frac{dP}{dt}\right) = 0\)