Which of the following is not correct?

If the most probable speed of methane at a certain temperature is \(400 \mathrm{~ms}^{-1}\), the kinetic energy of one mole of methane at the same temperature in \(\mathrm{J}\) is మీథేన్ గతిజశక్తి J లలో

Observe the following statements :
a. The thermal stability of hydrides of group 16 elements follow the order :
\(\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{Te}\)
b. Acidic nature of hydrides of group 16 elements follow the order :
\(\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{~S}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{Te}\)
c. The reducing nature of \(\mathrm{H}_2 \mathrm{~S}, \mathrm{H}_2 \mathrm{Se}\) and \(\mathrm{H}_2\) Te follow the order :
\(\mathrm{H}_2 \mathrm{~S} < \mathrm{H}_2 \mathrm{Se} < \mathrm{H}_2 \mathrm{Te}\)
The correct statement are:

The laser in an audio compact disc uses light of wavelength \(7.8 \times 10^2 \mathrm{~nm}\). What is the frequency of light emitted by laser?

Assertion(A): The maximum covalency of Si and Ge is 6 but that of carbon is 4.
Reason (R): Due to the presence of d-orbitals in Si and Ge, both these elements can undergo \(\mathrm{sp}^3 \mathrm{~d}^2\) hybridisation and covalency of 6 is possible. Carbon has no d-orbitals in it and hence its covalency is 4.
The correct answer is:

Identify the correct statement related to amino acids

Which of the following is not a conjugate acid-base pair?

Identify the set containing purine and pyrimidine base of DNA respectively.

9 balls are to be placed in 9 boxes and 5 of the balls cannot fit into 3 small boxes. The number of ways of arranging one ball in each of the boxes is

If \(\alpha, \beta\) and \(\gamma\) are the roots of the equation \(2 x^3+3 x^2-5 x-7=0\), then \(\frac{1}{\alpha^2}+\frac{1}{\beta^2}+\frac{1}{\gamma^2}=\)

A liquid is filled in a tank up to a height of \(5 \mathrm{~m}\) and the bottom of the tank is at \(5 \mathrm{~m}\) height from the ground. A hole is punched to the tank so that the liquid comming out touches the ground at maximum horizontal distance. Then the maximum horizontal distance is

Ball \(A\) of mass \(1 \mathrm{~kg}\) moving along a straight line with a velocity of \(4 \mathrm{~ms}^{-1}\) hits another ball \(B\) of mass \(3 \mathrm{~kg}\) which is at rest. After collision, they stick together and move with the same velocity along the same straight line. If the time of impact of the collision is \(0.1 \mathrm{~s}\) then the force exerted on \(B\) is

The sum of the least positive integer and the greatest negative integer in the range of the function \(f(x)=\frac{x^2-5 x+7}{x^2-5 x-7}\) is