Givecn that : `Zn+1//2O_(2)rarr ZnO+84000` cal ……………1 `Hg+1//2O_(2)rarr HgO+21700` cal …………2 The heat of reaction `(Delta H)` for, `Zn+HgO rarr ZnO+Hg

Givecn that : `Zn+1//2O_(2)rarr ZnO+84000` cal ……………1 `Hg+1//2O_(2)rarr HgO+21700` cal …………2 The heat of reaction `(Delta H)` for, `Zn+HgO rarr ZnO+Hg
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Givecn that : `Zn+1//2O_(2)rarr ZnO+84000` cal 1 `Hg+1//2O_(2)rarr HgO+21700` cal 2 ... cal B. 62300 cal C. `-105700` cal D. `-62300` cal
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Description : Heat of reaction for, `CO(g)+1//2O_(2)(g)rarr CO_(2)(g)` at constant V is -67.71 K cal at `17^(@)C` . The heat of reaction at constant P at `17^(@)C`

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Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)

Description : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K")overset("conc." HNO_(3))(rarr)(B)underset("NaOH")overset(Zn)

Last Answer : Phenol `underset("distillation")overset("Zinc")(rarr)(A)underset("conc."HNO_(3) "at 333K" ... -nitroaniline D. toluene, m-nitrobenzene and m-toulidine

`Ag_(2)S +NaCN rarr (a)` (a) `+Zn rarr (d)` (b) is a metal. Hence `(a)` and `(b)` are

Description : `Ag_(2)S +NaCN rarr (a)` (a) `+Zn rarr (d)` (b) is a metal. Hence `(a)` and `(b)` are

Last Answer : `Ag_(2)S +NaCN rarr (a)` (a) `+Zn rarr (d)` (b) is a metal. Hence `(a)` and `(b)` are A. `Na_(2)[Zn( ... )[Ag(CN)_(4)],Ag` D. `Na_(3)[Ag(CN)_(4)],Ag`

Saranya began a business with Rs 84000 and he joined by shalu with Rs 72000. At the end of the year their profit ratio 14:4 then after how many months does shalu joins the business? A) 5 B) 6 C) 8 D) 9

Description : Saranya began a business with Rs 84000 and he joined by shalu with Rs 72000. At the end of the year their profit ratio 14:4 then after how many months does shalu joins the business? A) 5 B) 6 C) 8 D) 9

Last Answer : Answer: C) Saranya invests Rs 84000 for 12 months shalu invests Rs 72000 for X months Ratio of both profits, Saranya: shalu =84000*12:72000*x =14:X 14/4=14/X => X = 4months =12-4=>8months

In a competitive examination in Pondicherry, 18% candidates got selected from the total appeared candidates. Tamilnadu and Pondicherry had an equal number of candidates appeared and in Tamilnadu 21% candidates got selected with 240 more than the candidates got selected in Pondicherry. What was the number of candidates appeared from each State? a) 25000 b) 84000 c) 24000 d) 700000 e) 9800

Description : In a competitive examination in Pondicherry, 18% candidates got selected from the total appeared candidates. Tamilnadu and Pondicherry had an equal number of candidates appeared and in Tamilnadu 21% candidates got selected ... appeared from each State? a) 25000 b) 84000 c) 24000 d) 700000 e) 9800

Last Answer : Answer: C  Pondichery and Tamilnadu had an equal number of candidates appeared  In Pondicherry, 18% candidates got selected from the total appeared candidates  In tamilnadu, 21% candidates ... > total appeared candidates in pondicherry = total appeared candidates in tamilnadu = 24000

`PbO_(2)+O_(3)rarrPbO+2O_(2),BaO_(2)+O_(3)rarrBaO+2O_(2)` these reaction are called

Description : `PbO_(2)+O_(3)rarrPbO+2O_(2),BaO_(2)+O_(3)rarrBaO+2O_(2)` these reaction are called

Last Answer : `PbO_(2)+O_(3)rarrPbO+2O_(2),BaO_(2)+O_(3)rarrBaO+2O_(2)` these reaction are called A. Oxidation B. Reduction C. Mutual reduction D. Dispropornation