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CBSE Class 11-science Answered

sir ,i didn't understand in the video about sharing of electrons in N as valency of N is 5.
Asked by | 24 Dec, 2012, 11:02: PM
answered-by-expert Expert Answer
Nitrogen has five electrons in its valence shell, to complete the octet, it requires 3 more electrons. By sharing electrons with other atoms it can easily complete its octet.
 
Answered by | 03 Jan, 2013, 09:07: AM

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CBSE 11-science - Chemistry
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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
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CBSE 11-science - Chemistry
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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
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