The s-Block Elements - Online Test
Q1. The common salt or table salt is
Answer : Option C
Explaination / Solution:
Common salt is NaCl.
Q2. Caustic soda is
Answer : Option A
Explaination / Solution:
Caustic Soda is NaOH.
Q3. Sodium hydrogencarbonate is known as
Answer : Option A
Explaination / Solution:
is baking soda.
Q4. Potassium ions are the most abundant cations. They:
Answer : Option C
Explaination / Solution:
Potassium ions are the most abundant cations. They participate in the oxidation of glucose to produce ATP
Q5. To acquire noble gas configuration, alkaline earth metals lose
Answer : Option D
Explaination / Solution:
Alkaline Earth Metals loses 2 electron to attain noble gas configuration.
Q6. Alkaline earth metals have large size of the atoms. Therefore, they shows
Answer : Option C
Explaination / Solution:
The reason is that the atoms of alkali metals are of large sizes. therefore, the outermost electon is for away from the nucleus and canbe easily removed
Q7. Choose the correct order of increase in electopositivity of alkaline earth metals in the options given below
Answer : Option D
Explaination / Solution:
As we move down the group size increases so IE value decreases thus electropositivity also decreases.( shielding effect also decreases as we go down the Group)
Q8. Choose the correct order of increase in ionic size of alkaline earth metals in the options given below
Answer : Option D
Explaination / Solution:
As we move down the group ionic radii increases.
Q9. Beryllium carbonate is unstable and can be kept only in the atmosphere of
Answer : Option C
Explaination / Solution:
is very unstable due to size incompatibility.
Q10. Radium salts are used in
Answer : Option D
Explaination / Solution:
Ra salts are used in the treatment of Cancer.
