Question

3
a a 2 - What is common in all bases
Or alkali​

Answer 1

Answer:

Alkalis are all Arrhenius bases, ones which form hydroxide ions (OH−) when dissolved in water. Common properties of alkaline aqueous solutions include: Moderately concentrated solutions (over 10−3 M) have a pH of 7.1 or greater.

Explanation:

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Answer 2

Answer:

Common features of all bases:

*They release hydroxide ions in aqueous solution.

*They are slippery to touch.

*They test bitter.

*They can turn the colour of red litmus to blue litmus paper.

*They react with acids to form salts.