Which of the following is an oxoacid?

The heat energy absorbed by a system undergoing the cyclic process shown in the figure is:

$A$ gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half. Then

Which one of the following statements is correct?

${ }^{234}Th_{90}$ gets converted to ${ }^{206}Pb_{82}$ through a series of radioactive decay processes. The number of alpha and beta particles lost in this transformation respectively,are

How much protein does a $250 \ kg$ cow produce in a day (in $g$)?