Chemistry
(a) Mahesh prepared a basic solution X that has a pH 7. How will the pH of the solution X change on addition of the following:
Hydrochloric acid
a solution of a base
(b) The atomic number of an element is 15. To which group will this element belong to?
Acids Bases Salts
ICSE Sp 2024
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Answer
(a) 1. On adding the acid, pH value will decrease.
- On adding the solution of a base, pH value will increase.
(b) As the atomic number is 15, so the electronic configuration will be 2, 8, 5. Hence, it will belong to VA group.
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