Explanation

In SF6 (sulfur hexafluoride), the central sulfur atom is bonded to six fluorine atoms in an octahedral arrangement. This results in two types of bond angles:

• The F-S-F bond angles in the equatorial plane are 90°
• The F-S-F bond angles between the equatorial and axial fluorine atoms are 180°

Explanation

The metal ions of transition metals are paramagnetic. The magnetic moment towards magnetic field is greatest of Fe^+3.

Explanation

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

Explanation

The molecule that is polar and has a dipole moment of 5.33 x 10^-30 Cm is SO2 (sulfur dioxide).

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.

Explanation

Cholesteryl benzoate is an example of a liquid crystal.

Explanation

• The given reaction (CH4 + Cl2 → CH3Cl + HCL) is an example of a free radical substitution reaction.
• Free radical reactions typically exhibit a constant rate over time, regardless of the concentration of the reactants.
• Therefore, the order of this reaction is Zero order.
  

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

Explanation

The salt which is formed by neutralization of weak acid and weak base is (NH4)2CO3.