Questions

In the final answer of the expression (29.2 – 20.2) (1.79 x 10⁵) / 1.37. The number

In the final answer of the expression (29.2 - 20.2) (1.79 x 10⁵) / 1.37. The number of significant figures…

What is the maximum number of electrons that can be associated with the following

What is the maximum number of electrons that can be associated with the following set of quantum numbers? n=3, l=1…

0.45 g acid of molecular weight 90 was neutralise by 20 mL of 0.5 N KOH

0.45 g acid of molecular weight 90 was neutralise by 20 mL of 0.5 N KOH. The basicity of acid…

Number of unpaired electrons in N2⁺ is

Number of unpaired electrons in N2⁺ is Options (a) 2 (b) 0 (c) 1 (d) 3 Correct Answer: 1Explanation:N(7) =…

The number of nodal planes in pₓ is

The number of nodal planes in pₓ is Options (a) 1 (b) 2 (c) 3 (d) 0 Correct Answer: 1Explanation:The…

The following quantum numbers are possible for how many orbital(s)

The following quantum numbers are possible for how many orbital(s) n= 3, l = 2, m = +2 ? Options…

One litre hard water contains 12 mg Mg²⁺. Milli equivalents of washing soda

One litre hard water contains 12 mg Mg²⁺. Milli equivalents of washing soda required to remove its hardness is Options…

The percentage weight of Zn in white vitriol [ZnSO₄ 7H₂O] is approximately equal

The percentage weight of Zn in white vitriol [ZnSO₄ 7H₂O] is approximately equal to Zn=65, S=32, O=16 and H=1) Options…

How many moles of lead (II) chloride will be formed from a reaction between

How many moles of lead (II) chloride will be formed from a reaction between 6.5 g of PbO and 3.2…

1 Wb/m² equal to

1 Wb/m² equal to Options (a) 10⁴ G (b) 10² G (c) 10⁻² G (d) 10⁻⁴ G Correct Answer: 10⁴…