Related Questions

Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?
A 6.09%
B 10%
C 10.75%
D 21.5%
100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?
A 70 kg
B 36 kg
C 44 kg
D 56 kg
Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?
A 600
B 800
C 300
D 250
E None of these
Mercaptans is represented as (where R and R' are alkyl groups)
A R-COOH
B R-S-H
C R-S-R
D R-S-R'
Mercaptans are
A Low boiling sulphur compounds
B Added in LPG cylinders to detect gas leakage by its smell
C Undesirable in petrol, as they reduce its octane number
D All of the above
Mercaptans are added to liquefied petroleum gas (LPG) to
A Reduce its cost
B Narrow down its explosion limit
C Assist in checking its leakage from cylinder
D Increase its calorific value
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to
A Protect rubber goods from attack by oxygen & ozone present in the atmosphere
B Reduce its viscosity to permit easier processing
C Reduce the time of vulcanisation and quantity of vulcanising agent
D Increase its viscosity
How many doctors are practicing in this town ? Statements 1. There is one doctor per seven hundred residents . 2. There are 16 wards with each ward with each ward having as many doctors as the number of wards
A I alone is sufficient while II alone is not sufficient
B II alone is sufficient while I alone is not sufficient
C Either I or II is sufficient
D Neither I nor II is sufficient
There are 240 doctors and nurses at a hospital. If the ratio of doctors to nurses is 5 to 7, how many nurses are at the hospital?
A 20
B 60
C 100
D 140
Meat in the diet is healthy, despite what some people say. After all, most doctors do eat meat and who knows more about health than doctors do? Which of the following, if true, most seriously weakens the inference above?
A Taking for granted that experts do not act counter to what, according to their expertise, in their best interest argument
B Generalizing on the basis of a sample consisting of a typical cases
C Assuming at the outset what the argument claims to establish through reasoning
D Appealing to authority, even when different authorities give conflicting advice about an issue.

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