Match the following columns:
Column-$I$ Column-$II$ $A$. Halophiles $i$. Gram-negative bacteria $B$. Thermoacidophiles $ii$. Inhabit extremely salty areas $C$. Spirochetes $iii$. Responsible for methane production $D$. Firmicutes $iv$. Survive in acidic and high-temperature conditions $v$. Gram-positive bacteria
| Column-$I$ | Column-$II$ |
|---|---|
| $A$. Halophiles | $i$. Gram-negative bacteria |
| $B$. Thermoacidophiles | $ii$. Inhabit extremely salty areas |
| $C$. Spirochetes | $iii$. Responsible for methane production |
| $D$. Firmicutes | $iv$. Survive in acidic and high-temperature conditions |
| $v$. Gram-positive bacteria |
- A$A-i, B-ii, C-iii, D-iv$
- B$A-ii, B-iv, C-i, D-v$
- C$A-v, B-iv, C-iii, D-ii$
- D$A-iii, B-iv, C-v, D-i$
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Similar Questions
Two discs of moments of inertia $I_1$ and $I_2$ about their respective axes (normal to the disc and passing through the centre),and rotating with angular speed $\omega_1$ and $\omega_2$ are brought into contact face to face with their axes of rotation coincident. What is the loss in kinetic energy of the system in the process?
The correct match of the group reagents in List$-I$ for precipitating the metal ion given in List$-II$ from solutions, is
List$-I$
List$-II$
$(P)$ Passing $H _2 S$ in the presence of $NH _4 OH$
$(1) \ Cu ^{2+}$
$(Q) \ \left( NH _4\right)_2 CO _3$ in the presence of $NH _4 OH$
$(2) \ Al ^{3+}$
$(R) \ NH _4 OH$ in the presence of $NH _4 Cl$
$(3) \ Mn ^{2+}$
$(S)$ Passing $H _2 S$ in the presence of dilute $\text{HCl}$
$(4) \ Ba ^{2+}$
$(5) \ Mg ^{2+}$
| List$-I$ | List$-II$ |
| $(P)$ Passing $H _2 S$ in the presence of $NH _4 OH$ | $(1) \ Cu ^{2+}$ |
| $(Q) \ \left( NH _4\right)_2 CO _3$ in the presence of $NH _4 OH$ | $(2) \ Al ^{3+}$ |
| $(R) \ NH _4 OH$ in the presence of $NH _4 Cl$ | $(3) \ Mn ^{2+}$ |
| $(S)$ Passing $H _2 S$ in the presence of dilute $\text{HCl}$ | $(4) \ Ba ^{2+}$ |
| $(5) \ Mg ^{2+}$ |
$0.066 \ g$ of metal was deposited when a current of $2 \ A$ is passed through a metal ion solution for $100 \ s$. What is the electrochemical equivalent (in $g \ C^{-1}$) of the metal?
Which of the following is present in maximum amount in acid rain?
At $298 \ K$,the value of $-\frac{\Delta[Br^-]}{\Delta t}$ for the reaction $5 Br^- (aq) + BrO_3^- (aq) + 6 H^+ (aq) \rightarrow 3 Br_2 (aq) + 3 H_2 O (l)$ is $x \ mol \ L^{-1} \ min^{-1}$. What is the rate (in $mol \ L^{-1} \ min^{-1}$) of this reaction?
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