Chemistry Test ...

Name the end product in the following series of reactions

Which of the following does not illustrate the anomalous properties of lithium?

The vapour of Hg absorb some electrons accelerated by a potential difference of 4.5 volts from rest as a result of which light is emitted. If the full energy of a single incident electron is supposed to be converted into light emitted by electron in a single Hg atom, find the wave number (1/λ) of the light

Identify the correct statement:

A crystalline hydrated salt on being heated loses 45.6% of its weight. Percentage composition of anhydrous salt is Al - 10.5 %, K - 15.1 %, S - 24.8 %, O - 49.6 %. Find molecular formula of salt (hydrated) (M = 948 g/mol for hydrated salt).

Which one of the following ores is best concentrated by froth flotation method?

Which of the following is a biradical?

At 500 K, the half life period of a gaseous reaction at an initial pressure of 80 kPa is 350 s350 s. When the pressure is 40 kPa, the half life period is 175 s; the order of the reaction is :

Consider the following three halides :

(1) CH₃ − CH₂ − ClCH₃ - CH₂ - Cl

(2) CH₂ = CH − ClCH₂ = CH - Cl

(3) C₆H₅ − ClC₆H₅ - Cl

Arrange C − Cl bond length of these compounds in decreasing order -

Ratio of ΔT_b/K_b of 10 g AB₂ and 14 g A₂B per 100 g of solvent in their respective, solution (AB₂ and A₂B both are non-electroytes) is 1 mol/kg in both cases. Hence, atomic weight of A and B are respectively :