# Tutor profile: Aishwarya K.

## Questions

### Subject: Organic Chemistry

Which is the mildest reducing agent which reduces only carbonyl group in presence of nitro, carboxyl, double bond and ester groups?

NaBH4 is mild reducing agent for this conversion. It is very effective for the reduction of aldehydes and ketones to alcohols. By itself, it will generally not reduce esters, carboxylic acids, or amides (although it will reduce acyl chlorides to alcohols).

### Subject: Basic Math

35% of 40 is ____________

(35*40)/100 = 14

### Subject: Algebra

There are 40 pigs and chickens in a farmyard. Joseph counted 100 legs in all. How many pigs and how many chickens are there?

Consider the number of pigs x and number of chickens y. Thu x+y = 40 Each pig has 4 legs and each chicken has 2 legs, so 4x+2y=100 Now we solve these quadratic equations, which leads to x=10 and thus y=30 So the number of chickens is 30 and pigs is 10.

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