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Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and

Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and Correct Answer Sulphuric acid

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A company manufactures multi-grain flour comprising of 37.5% wheat flour, 33.33% gram flour, 12.5% oats flour. How much wheat flour should be added in 12 kg of multi-grain flour, such that the ratio of wheat flour to gram flour becomes 3 ∶ 2?
Historically, the production of wood charcoal in locations where there is an abundance of wood dates back to a very ancient period, and generally consists of piling billets of wood on their ends so as to form a conical pile, openings being left at the bottom to admit air, with a central shaft to serve as a flue. The whole pile is covered with turf or moistened clay. The firing is begun at the bottom of the flue, and gradually spreads outwards and upwards. The success of the operation depends upon the rate of the combustion. Under average conditions, 100 parts of wood yield about 60 parts by volume, or 25 parts by weight, of charcoal; small-scale production on the spot often yields only about 50%, while large-scale became efficient to about 90% even by the seventeenth century. The modern process of carbonizing wood, either in small pieces or as sawdust in cast iron retorts, is extensively practiced where wood is scarce, and also for the recovery of valuable byproducts (wood spirit, pyroligneous acid, wood tar), which the process permits. The information given, if accurate, most strongly supports which of the following?
Solution-1 containing 10% nitric acid and 20% acetic acid at the rate F combines with Solution-2 containing 20% nitric acid and 10% acetic acid at the rate D, the product formed contains 30% nitric acid and 20% acetic acid at the rate P, how many independent equations containing F, D, and P are possible?
In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident? 1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter. 2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters. 3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit. Select the correct answer using the code given below :
Two vessels contain wheat flour and rice flour in the ratio 4 ∶ 9 and 8 ∶ 5 respectively. Find the ratio in which these two are to mixed so that the resultant mixture contains wheat flour and rice flour in the ratio 7 ∶ 6.
The initial ratio of sugar and flour in the dough was 4 : 7 With 22 kg of the dough Justine added more flour to make the sugar to flour ratio 2 : 5. How much flour did Justine later added?
The initial ratio of sugar and flour in a recipe was 17:28 With 27 kg of the recipe, Sunita added more flour to make the sugar to flour ratio 2:5 How much flour did Sunita later add?
A bag contained a mixture of wheat flour and gram flour in the ratio  5 ∶ 2. The ratio of the mixture can be changed to 11 ∶ 4 by adding 3 kg of wheat flour. In order to change the ratio of mixture to 5 ∶ 3, how much gram flour should be added?
A dishonest shopkeeper sells pure flour at cost price but mixes with other flour which is free of cost and earns 30% profit. Find the approximate percentage of other flour in mixture. (Other flour a belongs to him)
Which of the following option is correct about the use of mineral acids? Sulphuric acid is used in the manufacture of fertilizers like ammonium sulfate, paints, dyes, chemicals. Nitric acid is used for making fertilizers like ammonium phosphate, explosives like TNT: Tri-Nitro Toluene, dyes, and plastics.