Chemistry Test ...

The number of electrons in an element \(\mathrm{X}\) is \(15\) and the number of neutrons is \(16\). Which of the following is the correct representation of the element?

In a chemical equilibrium \(\mathrm {a+b}\) give rise to \(\mathrm {c+d}\) when \(1\) mole each of the two reactants are mixed \(0.4\) mole each of the products are formed. The equilibrium constant is:

If \(36.0 \mathrm{~g}\) of glucose is present in \(400 \mathrm{ml}\) of solution, molarity of the solution is:

The hydrocarbon that cannot be prepared effectively by the Wurtz reaction is:

What is packing efficiency in simple cubic lattice?

In which of the following species only one type of hybridization is present?

The number of valence electrons ___________ across a period and ________ down the group:

During discharging of a lead storage battery, which of the following is/are true?

The diagram given below is a vapour pressure composition diagram for a binary solution of A and B. In the solution, A-B interactions are:

During the isothermal expansion of an ideal gas, its: