Give some uses of dihydrogen
Dihydrogen is the homonuclear diatomic molecule composed of two hydrogen atoms. This molecule consists of a covalent bond between two... View Article
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Phenol is having more acidic character than alcohol. Explain why?
Phenols are much more acidic than alcohols because the negative charge in the phenoxide ion is not localized on the... View Article
Justify the statement ‘ the cleansing of soap is due to the emulsification and micelle formation’
A soap is a water-soluble compound that is made via a process called saponification by the reaction between sodium hydroxide... View Article
Predict the product formed from the reaction of formaldehyde and ammonia (a) hexamethylenetetramine (b) bakelite (c) urea (d) triethylenetetramine
When formaldehyde reacts with ammonia the product formed will be Hexamethylene tetramine. Rection between ammonia and formaldehyde (Formaldehyde) + (Ammonia)... View Article
What is meant by the temporary and permanent hardness of water and how is it caused?
Hard water has high mineral content. It is formed when water percolates through the deposits of chalk and limestone which... View Article
Whether boric acid is considered as protic acid? explain.
Protic acids are those acids that ionize in solutions and produce protons. But boric acid is a weak monobasic acid... View Article
A metal oxide contains 20% oxygen by weight. Find the equivalent weight
An equivalent weight of a solution is defined as the molecular weight of the solute divided by the valence of... View Article
(a) how many sub-shells are associated with n = 4? (b) how many electrons will be present in the sub-shells having ms value of -1/2 for n = 4?
Answer: Orbital: AnOrbital is a function that describes the wave-like behaviour of an electron. An atomic orbital is a space... View Article
Complete the following reactions given below (a) XeF4+SbF5 (b)PCl3+O2
(a) XeF4+SbF5 react to form a complex compound. XeF4 when reacting with SbF5 it forms an adduct which is a... View Article
How many sigma bonds and pi bonds are there in c2(carbon molecule)
There are 2 pi bonds and no sigma bonds. we will get a bond order of 2 from the molecular... View Article
Whether the conjugate base of nh3 is nh3+ or not. Explain why?
A base is any substance (molecules or ions) that can accept a proton to any other substance. A base is a... View Article
What is the key difference between lanthenoid contraction and actinoid contraction
Lanthanides are the rare earth elements of the modern periodic table i.e. the elements with atomic numbers from 58 to... View Article
What is a magneson reagent and explain its uses
Magneson reagent of formula C12H9N3O4 is an indicator used to determine the presence of magnesium element in the solution ... View Article
What is the ‘n’ factor of boric acid?
Boric Acid is a monobasic Lewis acid with the chemical formula H3BO3. The n factor of salts is defined as the... View Article
What will be the conjugate base of OH– from the following (a) O2-(b) H2O (c) O–(d )2
A base is any substance (molecules or ions) that can accept a proton to any other substance. A base is a... View Article
As we dilute the solutions gradually conductivity of the solution also decreases. State the reason
Conductivity can be described as the number of ions per millilitre of the solution. Conductivity is equivalent to the number... View Article
Why is boric acid considered as a weak acid?
Weak Acids are the acids that do not completely dissociate into their constituent ions when dissolved in solutions. When dissolved... View Article
How to calculate the molarity of pure water if it`s density is given as 1000kg/m3
The term molarity for a provided solution is described as the total number of moles of solute per litre of... View Article
Explain POAC and its uses with one example?
POAC stands for Principle Of Atom Conservation which is used to solve a chemical equation. POAC The POAC Principle Of... View Article
What will be the reaction when (i) sodium metal is dropped in water? (ii) sodium metal is heated in the free supply of air?
(i) Sodium reacts with water to give sodium hydroxide and dihydrogen which is a violent reaction Sodium + Water →... View Article
