Embibe Experts Solutions for Chapter: The s-Block Elements, Exercise 1: JEE Main - 12th April 2019 Shift 1

The alkaline earth metal sulphate(s) which are readily soluble in water is/are:
(A) ${\mathrm{BeSO}}_4$
(B) ${\mathrm{MgSO}}_4$
(C) ${\mathrm{CaSO}}_4$
(D) ${\mathrm{SrSO}}_4$
(E) ${\mathrm{BaSO}}_4$

Choose the correct answer from the options given below:

Which of the following reaction is correct?

Chlorides of which metal are soluble in organic solvents:

The element playing significant role in neuromuscular function and interneuronal transmission is :

The number of alkali metal(s), from $\mathrm{Li}, \mathrm{K}, \mathrm{Cs}, \mathrm{Rb}$ having ionization enthalpy greater than $400 \mathrm{kJ} {\mathrm{mol}}^{-1}$ and forming stable super oxide is

Match List I with List II
(A) Slaked lime                                     (I) $\mathrm{NaOH}$
(B) Dead burnt plaster                          (II) $\mathrm{Ca}(\mathrm{OH}{)}_2$
(C) Caustic soda                                  (III) ${\mathrm{Na}}_2{\mathrm{CO}}_3·10{\mathrm{H}}_2\mathrm{O}$
(D) Washing soda                                 (IV) ${\mathrm{CaSO}}_4$
Choose the correct answer form the options given below:

Choose the correct statement(s):
A. Beryllium oxide is purely acidic in nature.
B. Beryllium carbonate is kept in the atmosphere of ${\mathrm{CO}}_2$.
C. Beryllium sulphate is readily soluble in water.
D. Beryllium shows anomalous behavior.
Choose the correct answer from the options given below:

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Gypsum is used for making fireproof wall boards.

Reason (R): Gypsum is unstable at high temperatures.

In the light of the above statements, choose the correct answer from the options given below: