List-I (Compound) | List-II (Uses) |
---|---|
(A) Iodoform | (I) Fire extinguisher |
(B) Carbon tetrachloride | (II) Insecticide |
(C) CFC | (III) Antiseptic |
(D) DDT | (IV) Refrigerants |
Iodoform $\rightarrow$ Antiseptic
CCl$_4$ $\rightarrow$ Fire extinguisher
CFC $\rightarrow$ Refrigerants
DDT $\rightarrow$ Insecticide
Thus, the correct match is:
\[\boxed{\text{A-III, B-I, C-IV, D-II}}\]
If \[ \frac{dy}{dx} + 2y \sec^2 x = 2 \sec^2 x + 3 \tan x \cdot \sec^2 x \] and
and \( f(0) = \frac{5}{4} \), then the value of \[ 12 \left( y \left( \frac{\pi}{4} \right) - \frac{1}{e^2} \right) \] equals to: