Methyl benzoate was prepared by the reaction of benzoic acid with methanol in the presence of a mineral acid. the ester product
1 answer:
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Magnesium combined with chlorine.
How?
- Look at the question .Compound has -1 charge in it .Hence it contains Halogen.
- Looking at the options Option B and C contain Iodine and chlorine i.e halogens .
Now come to metals side.
- Potassium has valency 1(Look the Electronic configuration below)
Hence it will contain +1 charge which is omitted directly .
Now come to option C.
- Magnesium has charge +2(Look at EC below
Hence the compound formed is given by
Hence option C is correct.
Answer:
The correct answer is : 14, 10, 7, 4, 3, 1
Explanation:
The pH of the solution is a negative logarithm of the hydronium ion's concentrations present in a aqueous solution.The pH scale ranges from 0 to 14.
Mathematically written as:
- Higher the value of pH more alkaline will be the solution.
- Lower the value of pH more acidic will be the solution.
- The solution with pH value 7 is termed as neutral solution.
So, from the given options of pH arranged from most basic to most acidic will be the decreasing order from 14 to 1 :
14, 10, 7, 4, 3, 1