Download App

PART - 2 CH - 7 Redox Reactions — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryPART - 2 CH - 7 Redox Reactions4 Marks
Question
Match column A and column B and choose the right code :
Column AColumn B
1. $Cr _2 O _{7( aq )}^{2-} \longrightarrow Cr _{( aq )}^{+3}$(a) Reduction
2. $2 Br _{2(l)} \longrightarrow 4 Br _{( aq )}^{-}$(b) Oxidation
3. $CuSO _4$(c) Reduction
4. $Na _2 S_2 O _3$(d) Reducing agent
✓

Answer

(1) (c), (2) (a), (3) (b), (4) (d).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Match the following." from PART - 2 CH - 7 Redox Reactions→PART - 2 CH - 7 Redox Reactions — all question types→Chemistry STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Column AColumn B
(1) For isothermal reversible process(a) calculation of combustion energy
(2) Entropy change at equilibrium(b) $\begin{array}{l} W _{ rev }=-2303 nRT \\ \log \frac{ V _{ f }}{ V _{ i }}\end{array}$
(3) Ideal process(c) $\Delta S =0$
(4) Bomb calorimeter(d) reversible process
→
Column AColumn B
(1) Coinage metal(a) 28
(2) Elements form $M ^{+1}$ ion(b) Cu, Ag, Au
(3) All metals(c) Alkaline metals
(4) Number of inner transition elements(d) group 2
→
Column AColumn B
(1) $Ba ( OH )_2$(a) $\alpha \propto \sqrt{V}$
(2) For weak acid(b) Acidity = 2
(3) Ostwald dilution law(c) $\left[ H ^{+}\right]=\sqrt{ C . K _{ a }}$
(4) For dibasic acid(d) $K _{ a _2}< K _{ a _1}$
→
Column AColumn B
(1) $s p^3$ hybridisation(a) $CO _2$
(2) Linear geometry(b) $H _2 O$
(3) Bond angle $104.5^{\circ}$(c) $CCl _4$
(4) One l.p at central atom(d) $NH _3$
→
Column AColumn B
(1) Acidity(a) Velocity per second
(2) Acceleration(b) Heterogenous mixture
(3) Mixture of iron filling and sulphur powder(c) Chemical properties
(4) Diamond(d) Elements
→
Column AColumn B
(1) Neutralization energy of HCl + NaOH(a) Heat exchange due to difference in temperature
(2) Formation of mixture of gases(b) 57.32 kJ
(3)$\Delta G$  > 0(c) increase in entropy
(4) Heat(d) non-spontaneous process
→
Column AColumn B
(1) Li, Na, K(a) 7
(2) Number of periods in periodic table(b) Elements of group 18
(3) Noble gases(c) ununseptium
(4) Atomic mass 117(d) Dobereiner's triad
→
Column AColumn B
(1) Wavenumber(a) Principal quantum numbers
(2) Radius of Bohr shell(b) $2 n^2$
(3) Maximum number of electrons in any orbital(c) $\frac{1}{\lambda}$
(4) K, L, M, N, O(d) $\frac{n^2}{Z} \times 0.529 Å$
→
Column AColumn B
(1) Amphoprotic solvent(a) $CO _3^{2-}$
(2) Conjugate base of $HCO _3^{-}$(b) $BF _3$
(3) $CH _3 COOH$(c) $NH _3$
(4) Lewis acid(d) A weak base
→
Column AColumn B
(1) Shape of orbitals(a) $-13.6 \times \frac{ Z ^2}{n^2} eV$ per atom
(2) First postulate of Bohr model(b) Total values of 1
(3) Energy of electrons in Bohr's orbital $\left( E _{ n }\right)$(c) Azimuthal quantum numbers
(4) Number of subshells in any shell(d) $m V^2=\frac{ Ze ^2}{r}$
→