Which of the following statements is fal...

Which of the following statements is false :

Mass, speed and energy are scalars

Momentum, force and torque are vectors

Distance is a scalar while displacement is a vector

A vector has only magnitude whereas as a scalar has both magnitude and direction

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Which of the following statement is false ?

Radon is obtaind from the decay of radium

Helium is inert gas

Xenon is the most reactive among the rare gases

The most abundant rare gas found in the atmosphere is helium

40 % solution HCHO is known as formalin

HCHO is least reactive in its homologous series

The boiling point of iso - vareladehyde less than n - varelaldehyde (4 )

The boiling point of ketones are higher than that of aldehydes

An acidified solution of `Cr_2O_3` liberates iodine from potassium iodide

In acidic solution, dichromate ions are converted to chromate ions

Ammonium dichromate on heating undergoes exothermic decomposition to give `Cr_2O_3`

Potassium dichromate is used as a titrant for `Fe^(2+)` ions