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Aluminium utensils should not be kept in water overnight.Give reason
why is NH4CL ADDED BEFOR NH4OH
the nitride ion in lithium nitride is composed of 7 protons + 10 electrons. how?
The co-ordination compounds are of great importance. These compounds constitute the minerals, plants and are also present in animals. These play important functions. For example, c
the density of 2 molal aqueous solution of NaOH is 1.10g/L. Calculate the molarity of the solution.
a. 'Hormones are chemical messengers.' Explain? b. Name the main disease caused due to lack of the vitamin and its source in each of the following: A, B 6 and E.
how do your store hydrogen peroxide, nitric acid, sulfuric acid, hydrochloric acid, potassium permanganate, ammonium sulfate and silver nitrate in equatorial places (phil)? should
Preservatives: The preservatives avoid spoilage of food because of microbial expansion. The most common preservative employed is sodium benzoate; C 6 H 5 COON a It is metabol
Q. Define Enthalpy and Calculate the Enthalpy of a system? Ans. Enthalpy is a measure of the total energy content of a system. It is represented by a big H. Change in ent
Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
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