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What are the nodal planes of dz^2 orbital? how can we find nodal planes?

Nodal planes are defined as the planes of zero probability region to find the electron. The number of planes is equal to l. The nodal point is a... View Article

Differentiate between wrought iron and steel

Wrought iron and steel both are widely used metals in day to day life. In construction sites, these are the highly used materials. The... View Article

Explain the drawbacks of rutherford’s model of the atom?

Rutherford performed an experiment using alpha particle and gold foil. Rutherford’s conducted an experiment by bombarding a thin sheet of gold... View Article

Why are half-filled d orbitals more stable?

D block Elements have a general electronic configuration of (n-1)d 1-10ns 1-2. These elements can find stability in half-filled orbitals and... View Article

A solution of cuso4 is electrolysed for 10 minutes with a current of 1.5 amperes. what is the mass of copper deposited at the cathode?

The process by which ionic substances are decomposed into simpler substances when an electric current is passed through them. In the... View Article

Explain with suitable examples. (i) alcosol (ii) aerosol (iii) hydrosol?

Colloids (also known as colloidal solutions or colloidal systems) are mixtures in which microscopically dispersed insoluble particles of one... View Article

The oxidation number of cobalt in k[co(co)4] is (i) +1 (ii) +3 (iii) –1 (iv) –3

The correct answer is (iii) -1 In the above compound the oxidation number of iron can be determined as follows: CO is a neutral ligand and... View Article

What is the equivalent weight of iron in ferric chloride?

An equivalent weight of a solution is defined as the molecular weight of the solute divided by the valence of the solute. Equivalent weight is... View Article

Which are the factors that contribute to lattice energy of an ionic compounds. (a) charge on the ion and size of the ion.(b) packing of ions only (c) size of the ion only (d) charge on the ion only

The correct answer is (a) charge on the ion and size of the ion Lattice energy can be defined as the energy required to convert one mole of an... View Article

State henry’s law and its application

Henry’s law was first formulated in 1803 by an English physician and chemist William Henry. Henry's law states that the amount of gas that... View Article

Ortho–nitrophenol is less soluble in water than p– and m– nitrophenols why?

Ortho Nitrophenol is less soluble in water than para and meta nitrophenols becauseOrtho Nitrophenol is more volatile in steam than those of Meta... View Article

Is that possible to store copper sulphate solutions in a zinc pot?

Copper is less reactive than zinc. Zinc will replace the copper from its salt solution. When the copper sulphate solution is stored in a zinc... View Article

The compressibility factor for an ideal gas is a. 1.5 b. 1.0 c. 2.0 d. ∞

Compressibility factor of an ideal gas is the correction factor used to describe the deviation of a real gas behaviour from ideal gasIt is... View Article

Calculate the no. of iron atoms present in one molecule of haemoglobin given that haemoglobin contains 0.33% of iron by weight. the molecular weight of it is approx. 67200. options : (1) 1 (2) 2 (3) 4 (4) 6

Percentage of iron present in Haemoglobin = 0.33%Molecular weight = 67200Weight of iron = 0.33/100*67200=221.76The atomic weight of iron =... View Article

According tp VSEPR theory predict the geometry and shape of i3+ ion

The structure of I3+ is bent or V-shaped and the hybridization is sp3 The formula for determining the hybridization is 1/2{No: of valence... View Article

How many grams of conc.nitric acid solution should be used to prepare 250ml of 2m HNO₃?Given the concentrated acid is 70% HNO₃

The term molarity for a provided solution is described as the total number of moles of solute per litre of solution. The molarity of the solution... View Article

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