Related Questions

The molecular mass of sulphuric acid is 98. If 49 g of the acid is dissolved in water to make one litre of solution, what will be the strength of the acid?
A Two normal
B One normal
C 0.5 normal
D Four normal
Sulphur is melted in the sulphuric acid plant most commonly by employing
A Electrical heater
B Steam heater
C Direct fuel oil fired heater
D Gas fired furnace
In the manufacture of sulphuric acid from elemental sulphur, the following sequence of major operations is followed :
A Furnace → converter → absorber
B Furnace → evaporator → absorber
C Furnace → converter → evaporator
D Converter → furnace → absorber
Sulphur melting pit in the sulphuric acid plant is made of
A Lead lined stainless steel
B Cast iron
C Steel or cement-brick lined
D Hard wood
নিম্নের কোন পরীক্ষাটি সালফিউরিক এসিড ও নাইট্রিক এসিডের মধ্যে পার্থক্য করতে ব্যবহার করা যায়? (Which one of the following tests can be used to distinguish between sulphuric acid and nitric acid?
A সার্বজনীন নির্দেশক দিয়ে পরীক্ষা। (Test with universal indicator)
B সোডিয়াম কার্বনেট গুড়া যোগে। (Addition of sodium carbonate powder)
C ম্যাগনেশিয়াম ফিতা যোগে। (Addition of magnesium ribbon)
D বেরিয়াম নাইট্রেট দ্রবণ যোগে। (Addition of barium nitrate solution )
Reaction of nitric acid and sulphuric acid with phosphate rock produces
A Nitrophosphate
B Diammonium phosphate
C Tricresyl phosphate
D Tributyl phosphate
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with
A Acidic refractory
B Rubber
C Karbate
D Lead or acid-proof bricks
নিম্নের কোন পরিক্ষাটি সালফিউরিক এসিড ও নাইট্রিক এসিডের মধ্যে পার্থক্য করতে ব্যবহার করা যায়? (Which one of the following tests can be used to distinguish between sulphuric acid and nitric acid?)
A সার্বজনীন নির্দেশ দিয়ে পরীক্ষা। (Test with universal indicator)
B সোডিয়াম কার্বনেত গুড়া যোগে (Addition of sodiumcarbonate powder)
C ম্যাগনেসিয়াম ফিতা যোগে। (Addition of magnesium ribbon)
D বেরিয়াম নাইট্রেট দ্রবণ যোগে। (Addition of barium nitrate solution)
The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will
A Increase
B Decrease
C Remains same
D Depend on saturated boiling point; may increase or decrease
On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in
A Greater degree of separation with a fixed number of trays
B Increased reboiler load
C Increased reflux ratio
D None of these

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