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CBSE Class 11-science Answered

what is meant by electro chemical cell ?
Asked by AISWARYA M SHENOY | 22 Dec, 2011, 09:58: PM
answered-by-expert Expert Answer

An electrochemical cell is a device capable of either deriving electrical energy from chemical reactions, or facilitating chemical reactions through the introduction of electrical energy.

Answered by | 23 Dec, 2011, 09:39: AM

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CBSE 11-science - Chemistry
114 and 115 plzzz
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Asked by Kattaithihaas | 24 Jul, 2022, 06:03: PM
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CBSE 11-science - Chemistry
explain redox
Asked by jaip83491 | 24 Jan, 2021, 10:43: AM
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CBSE 11-science - Chemistry
oxidation State of cr2o-²7
Asked by snehadethe45 | 22 Oct, 2020, 11:31: AM
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CBSE 11-science - Chemistry
what is the most essential conditions that must be satisfied in a redox reaction
Asked by indranibaudya | 03 Oct, 2020, 08:12: PM
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CBSE 11-science - Chemistry
pls explain
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Asked by sulaikhasulu393 | 07 Jun, 2020, 10:51: PM
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CBSE 11-science - Chemistry
straight H subscript 2 straight O plus Fe plus straight X rightwards arrow RUST space find space straight x
Asked by kalvedant789 | 25 May, 2020, 08:17: PM
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CBSE 11-science - Chemistry
For the reaction, MnO4⊝+ C2O42− → MnO2+ CO2 ; The simplest mole ratio of MnO4⊝ and C2O42− in which they react is
Asked by debjit_dm | 04 May, 2020, 03:08: PM
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CBSE 11-science - Chemistry
(i) Balance the following equations by oxidation number method: (1) Cu + HNO3 → Cu (NO3)2 + NO2 + H2O) (2) K2Cr2O7 + HCl → KCl + CrCl3 + H2O + Cl2 (ii) Give reasons for the following: (1) HNO3 acts only as an oxidising agent while HNO2 can act both as a reducing agent and an oxidising agent. (2) Chlorine liberates iodine from KI solution. How will you convert the following? (Give balanced equation.) (1) Sodium acetate to methane Find the oxidation number of: (1) S in Na2S4 O6 2) S in S subscript 4 space O subscript 6 superscript 2 minus end superscript
Asked by defence221175 | 17 Feb, 2020, 06:10: PM
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CBSE 11-science - Chemistry
H2O2+Fe2+=H2O +Fe3+ , give ion exchange method 
Asked by Punshibakhuraijam2015 | 22 Sep, 2019, 08:40: PM
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CBSE 11-science - Chemistry
It takes 0.15 mole of ClO- to oxidize 12.6g of chromium oxide of a specific formula to Cr2O7 ^ 2-.ClO- became Cl-.The formula of the oxide is atomic weight Cr- 52, O- 16) (a)CrO3 (b)CrO2 (c)CrO4 (d)CrO
Asked by Balbir | 30 Jun, 2019, 03:45: PM
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