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What is ‘n’ factor for acid and how it is calculated for oxalic acid dihydrate?

The n factor of salts is defined as the number of moles of electrons exchanged (lost or gained) by one... View Article

Identify the metal ‘x’ present in chlorophyll and write the reaction of this metal with N₂.

Chlorophyll is a pigment present in all green plants and a few other organisms. It is required for photosynthesis, which... View Article

The total number of electrons in one molecule of carbon dioxide is a) 22b) 44c) 66d) 88

The answer is (a) 22 One carbon atom and two oxygen atoms make up carbon dioxide, a chemical compound. The... View Article

Which unit given below measures the size of the nucleus a) amu b) angstrom c) fermi d) cm

The answer is (c) Fermi (Fm). Measurement of nucleus The nucleus of an atom is the central region of an atom... View Article

Why do beryllium and magnesium does not show colour to the flame as other alkaline earth metals do?

All alkaline earth metals impart a distinct colour to the Bunsen flame. The various colours arise due to distinct energies... View Article

Find the purity percentage of H₂SO₄ with density 1.8, if 5ml of H₂SO₄ is neutralised completely by 84.6 ml of 2n NaOH solution

Given V1=5 N2=2 V2=84.6 Find out We have to determine the purity percentage of H2SO4 Solution Titration is the process... View Article

Give the correct order of bond length for CO, CO₂, CO₃^2- (carbonate) and why?

The bond order shows the number of chemical bonds present between a pair of atoms. The Bond Order Formula can... View Article

The mass of an electron is 9.1 × 10 ^-31 kg. If its Kinetic energy is 3.0 × 10^-25J, calculate its wavelength.

Given As per the given data Mass of an electron = 9.1 × 1031 Kinetic energy = 3.0 × 10–25... View Article

State kohlrausch law of independent migration of ions. give an expression for the molar conductivity of acetic acid at infinite dilution.

According to Kohlrausch’s law of independent migration, “The molar conductivity of an electrolyte at infinite dilution can be expressed as... View Article

In which of the following the rotational constant value in diatomic molecules depends on – a moment of inertia and bond length- nature of molecule- the only b is correct- both a and b are correct

The answer is both (a) and (b)

Find molarity, molality, normality and normality of H₂SO₄ in 98% w/w solution. (p=1.8g/ml).

Concentration is a basic term used in chemistry. In simple words, concentration is the measure of the quantity of a... View Article

Calculate the volume strength of 1.5 N H₂O₂ is (a) 4.8 (b) 8.4 (c) 3.0 (d) 8.0

Normality is defined as the number of equivalents per litre of solution: Normality = number of equivalents / 1 L... View Article

What is hybridization and geometry of xef6?

Hybridization is defined as the concept of mixing two atomic orbitals to give rise to a new type of hybridized... View Article

What is the purpose of adding bithional to soap?

The compound Bithional is added to soaps to impart antiseptic properties and to reduce the odour produced by bacterial decomposition... View Article

The formula (total valence electron/8) given for hybridization is applicable or not? if not find the limitations and solution for this with example.

Hybridization is the combining of atomic orbitals to produce new orbitals of varying energies and shapes than the initial orbitals.... View Article

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