List of top Chemistry Questions on Isomerism asked in NEET (UG)

Given below are two statements:
Statement I: trans-But-2-ene upon treatment with $\text{Br}_2$ in $\text{CCl}_4$ gives the following product:

Statement II: cis-But-2-ene upon treatment with alkaline $\text{KMnO}_4$ gives the following product:

In the light of the above statements, choose the most appropriate answer from the options given below.

निम्नलिखित अभिक्रिया अनुक्रम पर विचार कीजिए और सही विकल्प चुनिए।
\[ Ph-C\equiv C-CH_3 \xrightarrow{Na/liq.NH_3} L \] \[ L \xrightarrow{HBr} N \] \[ Ph-C\equiv C-CH_3 \xrightarrow{H_2/Pd-C} K \] \[ K \xrightarrow{HBr} M \]

With respect to the conformers of ethane, which of the following statements is true?

Which of the following pairs of compounds is isoelectronic and isostructural ?