Total no- of reactions in which disproportion will occur- i NO 2- H 2 O - ii Zn - Conc-HNO 3- iii W hiteP 4- NaOH -iv HCHO - NaOH Cannizaro reaction - v F eSO 4- NO 3- H 2 SO 4- vi P 4- SOCl 2- vii H 3 P O 3- viii I - S 2 O 82- ix MnO 42- H - x HNO 2-

(i) NO_2 + H_2O → 2HNO_3 + NO (Dis) +4 +5 +2 (ii) Zn + 4HNO_3→ Zn(NO_3)_2 + 2H_2O + 2NO_2 (iii) P_4 + 3NaOH + 3H_2O → PH_3 + 3 ...

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Byju's Answer

Standard XII

Chemistry

Introduction to Chemical Reactions

Total no. of ...

Question

Total no. of reactions in which disproportion will occur.

$(i) N O_{2} + H_{2} O \to (i i) Z n + C o n c . H N O_{3} \to (i i i) W h i t e P_{4} + N a O H \to$
$(i v) H C H O + N a O H Cannizaro reaction - ---------- \to (v) F e S O_{4} + N O_{3}^{-} + H_{2} S O_{4} \to (v i) P_{4} + S O C l_{2} \to$
$(v i i) H_{3} P O_{3} Δ - \to (v i i i) I^{-} + S_{2} O_{8}^{2 -} \to (i x) M n O_{4}^{2 -} H^{+} - - \to \to (x) H N O_{2} Δ - \to$

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Solution

$(i) N O_{2} + H_{2} O \to 2 H N O_{3} + N O (D i s) + 4 + 5 + 2 (i i) Z n + 4 H N O_{3} \to Z n (N O_{3})_{2} + 2 H_{2} O + 2 N O_{2} (i i i) P_{4} + 3 N a O H + 3 H_{2} O \to P H_{3} + 3 N a H_{2} P O_{2} (D i s) (i v) H C H O O H^{-} \to H C O O^{-} + C H_{3} O H (D i s) (v) b r o w n r i n g t e s t$

$(v i) P_{4} + S O C l_{2} \to 4 P C l_{3} + 4 S O_{2} + 2 S_{2} C l_{2} (v i i) 4 H_{3} P O_{3} Δ \to 3 H_{3} P O_{4} + P H_{3} (D i s) (v i i i) 2 I^{-} + S_{2} O_{8}^{2 -} \to I_{2} + 2 S O_{4}^{-} (i x) 3 M n O_{4}^{2 -} + 4 H^{+} \to 2 M n O_{4}^{-} + M n O_{2} + 2 H_{2} O (D i s) (x) 3 H N O_{2} \to H N O_{3} + 2 N O + H_{2} O (D i s)$

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Total no. of reactions in which disproportion will occur.___

(i) $N O_{2} + H_{2} O \to$ (ii) $Z n + C o n c . H N O_{3} \to$ (iii) White $P_{4} + N a O H \to$
(iv) $H C H O + N a O H C a n n i z a r o r e a c t i o n - ----------- \to$ (v) $F e S O_{4} + N O_{3}^{-} + H_{2} S O_{4} \to$ (vi) $P_{4} + S O C l_{2} \to$
(vii) $H_{3} P O_{3} Δ - \to$ (viii) $I^{-} + S_{2} O_{8}^{2 -} \to$ (ix) $M n O_{4}^{2 -} H^{+} - - \to$ (x) $H N O_{2} Δ - \to$

Match the following

(1)–(iii), (viii); (2)–(i), (iv); (3)–(ii), (vi); (4)-(ii),(v); (5)–(iii), (iv); (6)–(i) (vii); (7)–(ii), (iv)
(1)–(ii), (vii); (2)–(i), (iv); (3)–(ii), (vi); (4)-(ii),(v); (5)–(ii), (iv); (6)–(i) (viii); (7)–(iii), (iv)
(1)–(ii), (vii); (2)–(i), (vii); (3)–(iii), (iv); (4)-(i),(v); (5)–(ii), (vi); (6)–(i) (vi); (7)–(i), (iv)
(1)–(ii), (vii); (2)–(i), (iv); (3)–(ii), (vi); (4)-(ii),(iv); (5)–(i), (viii); (6)–(iii) (iv); (7)–(iii), (vii)

Q. How many of the following reactions or processes is/are exothermic ?
(i)