To increase milk yield,a cow is given:

Which of the following alkenes does $NOT$ exhibit $cis-trans$ isomerism?

Which one of the following is more readily hydrolysed by $S_{N}1$ mechanism?

Two identical $5\,kg$ blocks are moving with the same speed of $2\,m/s$ towards each other along a frictionless horizontal surface. The two blocks collide,stick together,and come to rest. Considering the two blocks as a system,the work done on the system by the external forces will be .............. $Joule$.

If $a, b$ and $c$ are the roots of $x^3+4x+1=0$,then $\frac{1}{a+b}+\frac{1}{b+c}+\frac{1}{c+a}=$

Fructose reduces Tollen's reagent due to