Match the physical/chemical property with the corresponding unit operations used for separation:

a) Density difference	(i) Distillation
b) Partition coefficient	(ii) Filtration
c) Relative volatility	(iii) Liquid-liquid extraction
d) Particle size	(iv) Centrifugation

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#Question id: 7591

#General Aptitude

A pilot flies an aircraft at a certain speed for a distance of 800 km. He could have saved 40 min by increasing the average speed of the plane by 40 km/h. Find the average speed of the aircraft.

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#Question id: 7592

#General Aptitude

A train started from point A at a speed of 60 km/hr and after 2 hours another train of same length started from A at a speed of 80 km/hr in the same direction as the first one. After how much time the second train will meet the first train?

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#Question id: 7593

#General Aptitude

An aeroplane files along the four sides of a square at the speeds of 200 , 400 , 600 and 800 km/hr. Find the average speed of the plane around the field

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#Question id: 7594

#General Aptitude

A car travels the first one third of a certain distance with a speed of 10 km/hr , the next one third distance with a speed of 20 km/hr , and the last one third distance with a speed of 60 km/hr . The average speed of the car for the hole journey is :

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#Question id: 7595

#General Aptitude

A man travels 600 km by train at 80 km/hr , 800 km by ship at 40 km/hr , 500 km by aeroplane at 400 km/hr and 100 km by car at 50 km/hr . What is the average speed for the entire distance ?

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#Question id: 40975

#General Aptitude

A train is moving at an average speed of 200/9 m/sec. It covers a distance of 1760 km in one day (24 h). It has stoppage during its 24 h journey at 6 stations for the same period of time. What is the time for which it stops at each station?