Explanation

In crystal field theory (CFT), the energy gap between the t2g and eg sets is denoted by 10Dq.

Explanation

Without payment or free of cost means "gratis."

Explanation

The molar mass of ethylene glycol (C2H6O2) = 2(12.01) + 6(1.01) + 2(16.00) = 62.07 g/mol

Number of moles of ethylene glycol = 60 g / 62.07 g/mol ≈ 0.966 moles

Mass of water = 100 g - 60 g = 40 g

Now, we need to convert the mass of water to kilograms:

Mass of water = 40 g * (1 kg / 1000 g) = 0.04 kg

Now, we can calculate the molality:

Molality (m) = moles of solute / mass of solvent in kg

Molality = 0.966 moles / 0.04 kg ≈ 24.15 moles/kg.

Explanation

• The compound K2Cr2O7 (potassium dichromate) is not a transition metal complex.
• It contains chromium in the +6 oxidation state, but it does not form a coordination complex with ligands.
• Instead, it is a chromium compound in which chromium is in the form of a polyatomic ion

Explanation

The pair of liquids that does not obey Raoult's Law is propanol and propanone.

Explanation

The complexometric titration using EDTA (Ethylenediaminetetraacetic acid) as a titrant is not suitable for titrating Xe (xenon) since xenon does not form stable complexes with EDTA.

Explanation

• Among the given options, the process of tautomerism is exemplified by the first reaction: CH3COOH + C2H5OH ⇌ CH3COOC2H5 + H2O.
• Tautomerism involves the rearrangement of bonds within a molecule, resulting in the formation of structural isomers called tautomers, which readily interconvert.
• In this reaction, the acetic acid (CH3COOH) and ethanol (C2H5OH) undergo tautomerism to form ethyl acetate (CH3COOC2H5) and water (H2O).

Explanation

The coordination number and oxidation state of cobalt in the given complex Na4[Co(C2O4)3] are respectively 6 and +3.

Explanation

The stake-shaped band in the infrared (IR) spectrum of the carboxylic acid group typically appears around 1710 cm⁻¹.

Explanation

‘He’ gas effuse from a hole of 10 dm^3 vessel in “5” seconds. The time for effusion of O2 from the same hole of 10 dm^3 will be 14.1 seconds.