Answer the question on the basis of passage given below: P block elements are placed in groups 13 to 18 of the periodic table. Their valence shell electronic configuration is ns2 np1-6. Group 16 of the p block elements are known as the group of chalcogens having ns2 np4 as their general electronic configuration. They exhibit a number of oxidation states, but the stability of the -2 oxidation state decreases down the group. They are sometimes also known as the group of chalcogens as the name is derived from the Greek word for brass and points to the association of sulfur and its congeners with copper. Their ionisation enthalpy decreases down the group. Oxygen shows anomalous behaviour due to its small size and high electronegativity.
Identify the epsom salt out of the following salts:
MgSO4 7H2O
The **Epsom salt** is **Magnesium sulfate heptahydrate (MgSO4 7H2O)**. It is commonly used as a laxative and in bath salts. Therefore, the correct answer is **option (d)**.
Important Questions from Solutions
The electronic conductance depends on:
(A) The nature and structure of the metal
(B) Composition of metallic conductor
(C) The number of valence electrons per atom
(D) Temperature
(E) Number of ions
Choose the correct answer from the options given below:
The substance having the same value of van't Hoff factor as that of k4[Fe(CN)6] is:
The desalination of seawater plant stops working due to which of the following reasons?
Which solutions will have the highest boiling point?
An aqueous solution of urea has a freezing point of -0.52°C. Predict the osmotic pressure of the solution at 37°C [Kf = 1.86, assuming that the molar concentration and molality are numerically equal].
