Chemistry Test-...

The ability of an ion to bring coagulation of a given colloidal solution depends on:

Which molecule/ion out of the following does not contain unpaired electrons?

Which of the following is not an antibiotic?

The standard heat of formation of \(\mathrm{U}_{3} \mathrm{O}_{8}\) is \(-853.5\) kcal/mole and the standard heat of the reaction \(3 \mathrm{UO}_{2}+\mathrm{O}_{2} \rightarrow \mathrm{U}_{3} \mathrm{O}_{8}\) is \(-76.01\) kcal. 

The standard heat of formation of \(\mathrm{UO}_{2}\) is:

Which one of the following element in period \(3\) has zero electron affinity?

In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti-Markovnikov's addition to alkenes because:

The volume of water to be added to \(100 \mathrm{~cm}^3\) of \(0.5 \mathrm{~N}~ \mathrm{H}_2 \mathrm{SO}_4\) to get decinormal concentration is:

In which of the following reactions, \(K _{ p }\) is less than \(K _{ C }\) ?

Which of the following statement in not true?

A certain substance answers Molisch's test as well as Benedict's test, but it does not answer Seliwanoff's test. Most probably, the compound under consideration is: