The carbon–based reduction method is NOT used for the extraction of

In the nuclear transmutation

⁹Be₄ + X $$\to$$ ⁸Be₄ + Y

(X, Y) is (are) :

The standard reduction potential data at 25^oC is given below:
E^o (Fe³⁺ , Fe²⁺) = +0.77V;
E^o (Fe²⁺ , Fe) = -0.44V;
E^o (Cu²⁺ , Cu) = +0.34V;
E^o (Cu⁺ , Cu) = +0.52V;
E^o [O₂(g) + 4H⁺ + 4e^- $$\to$$ 2H₂O] = +1.23V;
E^o [O₂(g) + 2H₂O + 4e^- $$\to$$ 4OH^-] = +0.40 V
E^o (Cr³⁺ , Cr) = -0.74V;
E^o (Cr²⁺ , Cr) = -0.91V;

Match E^o of the redox pair in List – I with the values given in List – II and select the correct answer using the code given below the lists:

List - I
P. E^o (Fe³⁺ , Fe)
Q. E^o (4H₂O $$\leftrightharpoons$$ 4H⁺ + 4OH^-)
R. E^o (Cu²⁺ + Cu $$\to$$ 2Cu⁺)
S. E^o (Cr³⁺, Cr²⁺)

List - II
1. -0.18 V
2. -0.4 V
3. -0.04 V
4. -0.83 V

An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List – I. The variation in conductivity of these reactions in List – II. Match List – I with List – II and select the correct answer using the code given below the lists:

List - I
P. $$\mathop {(C{}_2{H_5}){}_3N}\limits_X $$ + $$\mathop {C{H_3}COOH}\limits_Y $$
Q. $$\mathop {KI(0.1M)}\limits_X $$ + $$\mathop {AgN{O_3}(0.01M)}\limits_Y $$
R. $$\mathop {C{H_3}COOH}\limits_X $$ + $$\mathop {KOH}\limits_Y $$
S. $$\mathop {NaOH}\limits_X $$ + $$\mathop {HI}\limits_Y $$

List - II
1. Conductivity decreases then increases
2. Conductivity decreases then does not change much
3. Conductivity increases then does not change much
4. Conductivity does not change much then increases

The thermal dissociation equilibrium of CaCO₃(s) is studied under different conditions

CaCO₃(s) $$\leftrightharpoons$$ CaO(s) + CO₂(g).

For this equilibrium, the correct statement(s) is (are)

The K_sp of Ag₂CrO₄ is 1.1 $$\times$$ 10^-12 at 298 K. The solubility (in mol/L) of Ag₂CrO₄ in a 0.1 M AgNO₃ solution is

In the following reaction, the product/products formed is/are

The major product(s) of the following reaction is(are)

After completion of the reactions (I and II), the organic compound(s) in the reaction mixtures is(are)

The correct statement(s) about O₃ is(are)

The precipitate P contains

The coloured solution S contains

Compounds formed from P and Q are, respectively,

In the following reaction sequences V and W are, respectively,

The succeeding operations that enable this transformation of states are

The pair of isochoric processes among the transformation of states is

P and Q, respectively, are the sodium salts of

R, S and T respectively, are

The unbalanced chemical reactions given in List I show missing reagent or condition (?) which are provided in List II. Match List I with List II and select the correct answer using the code given below the lists :

	List I		List II
P.	$$Pb{O_2} + {H_2}S{O_4}\buildrel ? \over \longrightarrow PbS{O_4} + {O_2} + Other\,products$$	1.	NO
Q.	$$N{a_2}{S_2}{O_3} + {H_2}O\buildrel ? \over \longrightarrow NaHS{O_4} + Other\,products$$	2.	$${I_2}$$
R.	$${N_2}{H_4}\buildrel ? \over \longrightarrow {N_2} + Other\,products$$	3.	Warm
S.	$$Xe{F_2}\buildrel ? \over \longrightarrow Xe + Other\,products$$	4.	$$C{l_2}$$

Match the chemical conversions in List I with the appropriate reagents in List II and select the correct answer using the code given below the lists :