True. NH4CL is an ionic compound, and salts are strong electrolytes.
The dust particles in the water can be helped to settle down faster by Alum.
So, your answer is option B. Alum.
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Its a form of anaesthesia used by dentists
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Pneumonia is caused when an H3 is positive to any form so therefore the answer would be the element of a pneumonia will be a positive 6392
Answer:

Explanation:
From the question we are told that:
pKa for Acetic Acid 
Therefore
For Equal Concentration of acetic acid and acetatic ion

Generally the Henderson's equation for pH value is mathematically given by



