Select the correct statements from the following \(A\). Atoms of all elements are composed of two fundamental particles. \(B\). The mass of the electron is \(9.10939 \times 10^{-31} kg\). \(C\). All the isotopes of a given element show same chemical properties: \(D\). Protons and electrons are collectively known as nucleons. \(E\). Dalton's atomic theory, regarded the atom as an ultimate particles of matter Choose the correct answer from the options given below

How many gram of cobalt metal will be deposited when a solution of cobalt \((II)\) chloride is electrolyzed with a current of \(10\) amperes for \(109\) minutes \((1\) Faraday \(= 96,500\, C;\) Atomic mass of  \(Co = 59\, u)\)

Given below are two statements: Statement \(I\): The boiling point of hydrides of Group \(16\) elements follow the order \(\mathrm{H}_2 \mathrm{O}>\mathrm{H}_2 \mathrm{Te}>\mathrm{H}_2 \mathrm{Se}>\mathrm{H}_2 \mathrm{~S}\). Statement \(II\): On the basis of molecular mass, \(\mathrm{H}_2 \mathrm{O}\) is expected to have lower boiling point than the othe members of the group but due to the presence of extensive \(\mathrm{H}\)-bonding in \(\mathrm{H}_2 \mathrm{O}\), it has higher boiling point. In the light of the above statements, choose the correct answer from the options given below:

Energy and radius of first Bohr orbit of \(He ^{+}\)and \(Li ^{2+}\) are
\(\left[\text {Given } R_{H}=2.18 \times 10^{-18} J, a_0=52.9\text{pm}\right]\)

Identify the incorrect statement from the following :

The correct order of increasing metallic character of Na, Be, P, Mg and Si is :

The following solutions were prepared by dissolving \(10\, \mathrm{~g}\) of glucose \(\left(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\right)\) in \(250 \,\mathrm{ml}\) of water \(\left(\mathrm{P}_{1}\right)\), \(10\, \mathrm{~g}\) of urea \(\left(\mathrm{CH}_{4} \mathrm{~N}_{2} \mathrm{O}\right)\) in \(250\, \mathrm{ml}\) of water \(\left(\mathrm{P}_{2}\right)\) and \(10\, \mathrm{~g}\) of sucrose \(\left(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\right)\) in \(250\, \mathrm{ml}\) of water \(\left(\mathrm{P}_{3}\right)\). The right option for the decreasing order of osmotic pressure of these solutions is :

The physical quantity that has the same dimensional formula as pressure is :

Which of the following oxide is amphoteric in nature?

The common characteristics between tomato and potato will be maximum at the level of their

The sequence that controls the copy number of the linked \(DNA\) in the vector, is termed 

Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?

The energy equivalent of \(0.5\, g\) of a substance is\(........J\)