What is the bond angle in $ClO_2$ (OClO) (in $^{\circ}$)?

Which stage is indicated by the given figure?

The magnitude of maximum acceleration is $\pi$ times that of maximum velocity of a simple harmonic oscillator. The time period of the oscillator in seconds is

Which enzymes are likely to act on the baked potatoes eaten by a man,starting from the mouth and as it moves down the alimentary canal?

An electronic transition in a hydrogen atom results in the formation of the $H_\alpha$ line of the hydrogen spectrum in the Lyman series. The energies associated with the electron in each of the orbits involved in the transition (in $kcal \ mol^{-1}$) are:

The sum of the coefficients in the expansion of $(1+x+x^2)^n$ is