Chemistry Test ...

The electronegativity of Caesium is 0.7 and that of Fluorine is 4.0. The bond formed between the two is:

Which of the following represents the correct order of increasing first ionization enthalpy for Ca, Ba, S, Se and Ar.

Identify major product ' P ' formed in the following reaction.

Cooking gas (LPG) mainly consists of:

Which of the following elements does not form hydride by direct heating with dihydrogen?

Calculate (a) wavenumber and (b) frequency of yellow radiation having wavelength \(5800 \mathring{\mathrm{A}}\):

Ferrous oxide forms a lattice structure in which the length of the edge of the unit cell is 5Å and the density of the oxide is 4.0 gcm⁻³. Then, the numbers of Fe²⁺ and O²⁻ ions present in each unit cell will be:

\(2 K(s)+F_{2}(g) \rightarrow 2 K^{+} F^{-}(s)\) is a type of _________ reaction.

By what factor must \(\left[H^{+}\right]\) be increased to increase the reduction potential of a hydrogen electrode, having fixed pressure of hydrogen gas, by \(0.0282\) V?

In the analysis of an organic compound, it was found that it contains 7 carbon atoms, there are two \(\mathrm{C}=\mathrm{C}\) bonds and one \(\mathrm{C} \equiv \mathrm{C}\) bond. This compound is a hydrocarbon.

Hydrocarbons have only carbon and hydrogen elements. On structural analysis it was found that it is covalent in nature and expected structure is given above. The ratio between the pure and hybrid orbitals is?