1.
2018,Years,Inorganic,Subjects,Hard,Difficulty,IIT-JAM Chemistry,Chemical Science Exams
The gauche interaction values for Me/Me, Me/Br and Br/Br are 3.3, 0.8 and 3.0 kJ·mol⁻¹, respectively. Among the following Newman projections, which is the *most stable conformation* of 2,3-dibromobutane?
2.
Assertion-Reason,2012,Years,Inorganic,Subjects,Question Type,Hard,Difficulty,CUET-PG,Chemical Science Exams
The configurations at the two stereocentres in the compound given below are:
3.
2017,Years,Aptitude,Subjects,Easy,Difficulty,CSIR-NET,Chemical Science Exams
\[ \mathrm{Fe(s) + CuSO_4(aq) \rightarrow FeSO_4(aq) + Cu(s)} \]
4.
2011,Years,Aptitude,Subjects,MSQ,Question Type,Easy,Difficulty,CSIR-NET,IIT-JAM Chemistry,Chemical Science Exams
$\mathrm{Ni}\left(\mathrm{CN}_4\right)^{2-}$ and $\mathrm{Ni}\left(\mathrm{Cl}_4\right)^2$ - complex ions are :
5.
2014,Years,Physical,Subjects,Medium,Difficulty,IIT-JAM Chemistry,Chemical Science Exams
In the most stable conformation of trans-1-t-butyl-3-methylcyclohexane, the substituents at C-1 and C-3, respectively, are:
6.
2020,Years,Organic,Subjects,MSQ,Question Type,Medium,Difficulty,CUET-PG,Chemical Science Exams
An optically active compound enriched with $\mathbf{R}$-enantiomer $(60 \% \mathrm{ee})$ exhibited $[\alpha]_{\mathrm{D}}+90^{\circ}$. If the $[\alpha]_D$ value of the sample is $-135^{\circ}$, the ratio of $R$ and $S$ enantiomers would be
7.
2013,Years,Organic,Subjects,Numerical,Question Type,Medium,Difficulty,GATE Chemistry,Chemical Science Exams
The two compounds given below are: