Title REDOX REACTIONS Q-10.pdf ✅

CLASS : XIIth SUBJECT : CHEMISTRY DATE : DPP NO. : 10 1. How many milliliter of 0.5 N SnCl2 solution will reduce 600 mL of 0.1 N HgCl2 to Hg2Cl2? a) 120 mL b)60 mL c) 30 mL d)240 mL 2. What weight of FeSO4 (mol. wt. =152) will be oxidised by 200 mL of normal KMnO4 solution in acidic solution? a) 30.4 g b)60.8 g c) 121.6 g d)15.8 g 3. How many milligram of iron (Fe 2+) are equal to 1 mL of 0.1055 N K2Cr2O7 equivalent? a) 5.9 mg b)0.59 mg c) 59 mg d)59 × 10―3 mg 4. Number of moles of MnO ― 4 required to oxidise one mole of ferrous oxalate completely in acidic medium will be : a) 0.4 mole b)7.5 mole c) 0.2 mole d)0.6 mole 5. A, B and C are three elements forming a part of compound in oxidation states of +2, +5 and −2 respectively. What could be the compound? a) A2(BC)2 b)A2 (BC4 )3 c) A3 (BC4 )2 d)ABC 6. In an oxidation process for a cell M1 ⟶Mn+ 1 +ne, the other metal (M2) being univalent showing reduction takes up the .....electrons to complete redox reaction. a) (n ― 1) b)1 c) n d)2 7. In which of the following reactions, chlorine acts as an oxidising agent? (i) CH3CH2OH + Cl2 CH3CHO + HCl (ii)CH3CHO + Cl2 CCl3CHO + HCl (iii)CH4 + Cl2 CH3Cl + HCl The correct answer is a) (i) only b) (ii) only c) (i) and (iii) d)(i),(ii) and (iii) 8. During a redox change, the oxidant K2Cr2O7 is always reduced to : a) Cr 5+ b)Cr 4+ c) Cr 3+ d)Cr 2+ Topic :-REDOX REACTIONS