NEET Test Series-2021 to 2022/NEET Chemistry MCQS - Redox Reaction and Method for Balancing Redox Reaction Sample Test,Sample questions

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Question: 
 A compound of Xe and F is found to have 53.5% of Xe. What is the oxidation number of Xe in this compound?

1.-4

2.0

3.4

4.6

Posted Date:-2021-03-07 09:10:40

Question: 
 Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because

1.Zn acts as an oxidising agent when it reacts with HNO3

2.HNO3 is a weaker acid than H2SO4 and HCl

3.In electrochemical series, Zn is above hydrogen

4.NO3– is reduced in preference to hydronium ion

Posted Date:-2021-03-07 09:10:40

Question: 
A solution contains Fe2+, Fe3+ and I– ions. This solution was treated with iodine at 35oC. Eo for Fe3+/Fe2+ is 0.77V and Eo for I2/2I– = 0.536V. The favourable redox reaction is

1.I2 will be reduced to I–

2.there will be no redox reaction

3.I– will be oxidised to I2

4.Fe2+ will be oxidised to Fe3+

Posted Date:-2021-03-07 09:10:40

Question: 
 Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because

1. Zn acts as an oxidising agent when it reacts with HNO3

2. HNO3 is a weaker acid than H2SO4 and HCl

3. In electrochemical series, Zn is above hydrogen

4.NO3– is reduced in preference to hydronium ion

Posted Date:-2021-03-07 09:10:40

Question: 
Which of the following cannot function as an oxidising agent?

1.I–

2.Si(s)

3.NO3–(aq)

4.. Cr2O72-

Posted Date:-2021-03-07 09:10:40

Question: 
Which reaction involves neither oxidation nor reduction?

1.CrO42- -→ Cr2O72-

2.Cr → CrCl3

3.Na → Na+

4.2S2O32- → S4O62-

Posted Date:-2021-03-07 09:10:40

Posted on by R4R Team

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