c) a neutralization agent dnone 16) Based on the reaction below, how of 0.1 M KI

Question

c) a neutralization agent dnone 16) Based on the reaction below, how of 0.1 M KIO, used IO).(aq) + 81-(aq) + 6H'(aq) 31'(aq) + 3H20/) a) 0.256 g many is used during the itas of vitamin- C (Call-0o) is present in a sample if 14.55 ml b) 0.085 g c) 0.0146 g d) 0.769 g 17) What is correct for the reaction below? a) Hydrogen gains electron b) Carbon gains electrorn c) Oxygen loses electron d) none of the above 18) Which of the following is not a redox reaction? a) CuO(s) + H2(g) Cu(s) + H2O(g) b) H2SO4 + Ca(OH)2 Caso, + H2O c) Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g) d) CH4 + 202 CO2 + 2H2O 19) Which of the following is being reduced in the reaction below? Fe03(s) + 3CO(g) 2 Fe(s) + 3 CO2(g) a) Fe2O3 b) CO c) Fe d) CO2 20) what is the oxidation number of ‘S, in so a) +4 d) -2 21) In which of the followings, 'N' has the highest oxidation number? a) NO2 b) N2 c) NOs d) Mg 22) Burning wood is a redox reaction. a) True b) False c) More info

Explanation / Answer

Q17) answer is carbon gains electron as the oxidation state of carbon changes from +4 in CO 2 to +2 in CO . ANSWER IS B. Q18) answer is B as in this reaction the oxidation state of individual elements is equal to that after reaction . Q19)answer is A as Fe 2 O3 is reduced to Fe ,that is removal of oxygen is taking place . Q20)answer is +6 , let X be the oxidation state of sulphur ,soving it X -- 8 = -- 2 ,X = 6 Q 21) answer is a) here nitrogen has +4 oxidation state in other cases it is less than 4

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