Ethylidene chloride is \(CH_3 – CHCl_2\), its IUPAC name is 1,1-Dichloromethane.
So, the correct option is (D).


Let $ A \in \mathbb{R} $ be a matrix of order 3x3 such that $$ \det(A) = -4 \quad \text{and} \quad A + I = \left[ \begin{array}{ccc} 1 & 1 & 1 \\2 & 0 & 1 \\4 & 1 & 2 \end{array} \right] $$ where $ I $ is the identity matrix of order 3. If $ \det( (A + I) \cdot \text{adj}(A + I)) $ is $ 2^m $, then $ m $ is equal to:
A square loop of sides \( a = 1 \, {m} \) is held normally in front of a point charge \( q = 1 \, {C} \). The flux of the electric field through the shaded region is \( \frac{5}{p} \times \frac{1}{\varepsilon_0} \, {Nm}^2/{C} \), where the value of \( p \) is:
‘Alkyl halide’ is the very common name for haloalkanes. The written format for haloalkane in the IUPAC name is “numerical position-alphabetically placed halo- root-word-ane”
‘Aryl Halide’ is the very common name for haloarenes. In the nomenclature system, the numerical prefixes are named, depending on the basic position of the halogen atom in the aromatic ring.
In presence of more than one halogen atom, the halogen group is named and the aromatic ring is numbered based on the numerical position of the aromatic ring. Numerical prefixes are written in the format (1, 2) ; (1,3) ; (1,4). Always the least number is given to the halogen number.
Read More: Nomenclature of Haloalkanes and Haloarenes

Nomenclature of Haloalkanes and Haloarenes