In what form is opium obtained from the poppy plant?

If the momentum of an electron is changed by $\Delta p$,then the de-Broglie wavelength associated with it changes by $0.50\%$. The initial momentum of the electron will be

Which of the following has the highest electropositive character?

$A$ circular road of radius $1000 \ m$ has a banking angle of $45^o$. The maximum safe speed of a car having a mass of $2000 \ kg$ will be,if the coefficient of friction between the tyre and the road is $0.5$, . . . . . . $m/s$.

The number of ways that $8$ beads of different colours can be strung as a necklace is

Which of the following is involved in the catalysis of link reaction during aerobic respiration?