MCQ
Match List $- I$ with List $- II$
- A(A)-(I), (B), (II), (C)-(III), (D)-(IV)
- B(A)-(III), (B)-(I), (C)-(IV), (D)-( II)
- C(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
- D(A)-( II), (B)-(III), (C)-(I), (D)-(IV)
✓
Answer
$CCl_4$ used in fire extinguisher. $CH_2Cl_2$ used as paint remover. Freons used in refrigerator and $AC. DDT$ used as non Biodegradable insecticide.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Total number of isomeric compounds (including stereoisomers) formed by monochlorination of $2-$methylbutane is................
→The enthalpy of formation of ethane $\left(\mathrm{C}_2 \mathrm{H}_6\right)$ from ethylene by addition of hydrogen where the bondenergies of $\mathrm{C}-\mathrm{H}, \mathrm{C}-\mathrm{C}, \mathrm{H}-\mathrm{H}$ are $414 \mathrm{~kJ}, 347 \mathrm{~kJ}$, $615 \mathrm{~kJ}$ and $435 \mathrm{~kJ}$ respectively is -. . . . . . . . .$\mathrm{kJ}$.
→Water decomposes at $2300\,K$
→$H _2 O ( g ) \rightarrow H _2( g )+\frac{1}{2} O _2( g )$
The percent of water decomposing at $2300\,K$ and $1\,bar$ is $...........$ (Nearest integer).
Equilibrium constant for the reaction is $2 \times 10^{-3}$ at $2300\,K$
$A$ is :
→The total no. of stereoisomer of the product is
→$C{H_3} - CH = CH - COOH\xrightarrow{{B{r_2}}}$
A gene is a segment of a molecule of
German silver is an alloy of $Cu$ with
→An endothermic reaction with high activation energy for the forward reaction is given by the diagram:
The density of $3\,M$ solution of sodium chloride is $1.252\,g\,mL^{-1}$ . The molality of the solution will be ............. $\mathrm{m}$
→(molar mass, $NaCl = 585\,g\,mol^{-1}$ )
The energy required to break one mole of $Cl- Cl$ bonds in $Cl_2$ is $242\, kJ \,mol^{- 1}.$ The longest wavelength of light capable of breaking a single $Cl - Cl$ bond is ............ $\mathrm{nm}$
→$(C= 3 \times 10^8 \,ms^{-1}$ and $N_A =6.02 \times mol^{-1}).$