
Several blocks of magnesium are fixed to the bottom of a ship to

Important Questions on The s-Block Elements



Element | Ionization enthalphy | ||
A | 899 | 1757 | 14847 |
B | 737 | 1450 | 7731 |
Which of the following statements is correct?









Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Lithium salts are hydrated.
Reason (R) : Lithium has higher polarising power than other alkali metal group members.
In the light of the above statements, choose the most appropriate answer from the options given below :



Identify the correct statements about alkali metals.
A. The order of standard reduction potential for alkali metal ions is .
B. is highly soluble in water.
C. Lithium carbonate is highly stable to heat.
D. Potassium dissolved in concentrated liquid ammonia is blue and paramagnetic.
E. All alkali metal hydrides are ionic solids.
Choose the correct answer from the options given below



Match List-I with List-II
List - I (Elements) |
|
List - II (Properties) |
|
(a) | Organic solvent soluble compounds | ||
(b) | Outer electronic configuration | ||
(c) | Oxalate insoluble in water | ||
(d) | Formation of very strong monoacidic base |
Choose the correct answer from the options given below:


