The correct increasing order of reducing power of the metals is:
K+/K = –2.93 V |
Ag+/Ag = 0.80 V |
Hg2+/Hg = 0.79 V |
Mg2+/Mg = –2.37 V |
Cr3+/Cr = – 0.74 V |
1. Cr < Mg < K < Ag < Hg
2. Mg < K < Ag < Hg < Cr
3. K < Ag < Hg < Cr < Mg
4. Ag < Hg < Cr < Mg < K
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct statement about the given galvanic cell equation is -
Zn(s) + 2Ag+(aq) → Zn2+(aq) + 2Ag(s)
1. | The current will flow from silver to zinc in the external circuit. |
2. | The current will flow from zinc to silver in the external circuit. |
3. | The current will flow from silver to zinc in the internal circuit. |
4. | The current will flow from zinc to silver in the internal circuit. |
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology2Cr(s) + 3Cd2+(aq) → 2Cr3+(aq) + 3Cd
;
The value of in the above reaction will be -
1. -196.83 kJ
2. 196.83 kJ
3. 186.83 kJ
4. -186.83 kJ
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe incorrect statement(s) among the below is/are:
a. | The unit of conductivity is S cm-2 |
b. | Specific Conductivity of weak and strong electrolytes always decreases with a decrease in concentration. |
c. | The unit of molar conductivity is S cm2 mol-1 |
d. | Molar conductivity increases with an increase in concentration. |
1. a
2. a and d
3. b and d
4. a and c
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm–1. The molar conductivity will be -
1. 124 S cm2 mol-1
2. 134 S cm2 mol-1
3. 128 S cm2 mol-1
4. 136 S cm2 mol-1
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe electricity required in coulombs for the oxidation of 1 mole of FeO to is-
1. 964.87 C
2. 96487 C
3. 96.487 C
4. 9.6487 C
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe value of Ecell in the reaction below will be:
\(\small{Pt(s)|Br^{-}(0.010 \ M)|Br_{2}(l) \ ||H^{+}(0.030 \ M)|H_{2}(g)(1 \ bar)|Pt(s)}\)
\(E_{Br^{-}/Br_{2}}^{o} \ = \ -1.09 \ V\)
1. +1.298 V
2. -1.398 V
3. -1.298 V
4. -1.198 V
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe value of ∆G° in the reaction below would be:
Zn(s) + Ag2O(s) + H2O(l) → Zn+2(aq) + 2Ag(s) + 2OH-(aq)
Given: \(E_{cell}^{\circ} = 1.04V\)
1. -2.13 kJ
2. -21.3 kJ
3. -213.04 kJ
4. -31.12 kJ
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe mass of nickel deposited by electrolysis of a solution of using a current of 5 amperes for 20 min is (atomic mass of Nickle is 58.7) -
1. 2.42 g
2. 1.82 g
3. 3.93 g
4. 6.42 g
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThree electrolytic cells A, B, C containing solutions of ZnSO4, AgNO3, and CuSO4, respectively are connected in series. A steady current of 1.5 amperes was passed through them until 1.45 g of silver was deposited at the cathode of cell B. The current flow time is-
1. 14 minutes
2. 25 minutes
3. 20 minutes
4. 11 minutes
Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot
NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology