Chemistry

All have same molarity, pH ∝ 1/ (Acidic strength) ∝ Basic strength

H? SO? → Acidic

NH? Cl (Salt of weak base and strong acid)

Acidic but less than H? SO?

NaCl → (Neutral solution)

NaOH → Basic (Strong Base)

So NaOH > NaCl > NH? Cl > H? SO?

(a)  [1rCl (CO) (PPh₃)₂] carbonylchloridobis (triphenylphosphine) iridium (I).

(b)  Coordination number of Ir is four. Ir is in (+1) oxidation state with 4d⁸ configuration. It is trans isomer, so its geometry should be square planar.

(c) All electrons are paired, hence diamagnetic

(d)  Can exhibit GI only.

and basic strength ∝ 1/pK? ∝ K? ∝ +R ∝ 1/ (-R) ∝ +I ∝ 1/ (-I)

So basic strength order ⇒ IV > III > II > I, so pK? order is IV < III < II < I

Fe acts a catalyst and Mo acts as promoter in Haber's process.

? Solvent is H? O, which is in excess

So using m ( molality ) = (x? *1000)/ (x? * (M? )? )

? x? = 0.74 (Mol? = 18 g)

x? = 1 – 0.74 = 0.26 ∴ m = (0.26 * 1000)/ (0.74 * 18) = 19.5

If hunds rule is followed

${N_2}^{-2}:\sigma 1s^2{\sigma }^{*}1s^2\sigma 2s^2{\sigma }^{*}2s^2\sigma 2{p_z}^2\pi 2{p^2}_x\pi 2{p_y}^2{\pi }^{*}2{p_x}^1{\pi }^{*}2{p_y}^1$            

If Hunds rule is not followed

${N_2}^{-2}:\sigma 1s^2{\sigma }^{*}1s^2\sigma 2s^2{\sigma }^{*}2s^2\sigma 2{p_z}^2\pi 2{p^2}_x\pi 2{p_y}^2{\pi }^{*}2{p_x}^2$            

BOD value less than 5ppm is considered as clean water and BOD value more than 10ppm is considered as polluted water.

Reaction rate is used to measure how fast or slow reactions occur per unit time. The rate constant is a proportionality factor that remains constant for every reaction.

Yield of 4-hydroxypentan-2-one is low because aldol and diacetone alcohol are also formed.