Maximum number of H-bonds in one molecule of water is
Maximum number of H-bonds in one molecule of water is
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
4
Explanation:
No explanation available. Be the first to write the explanation […]
Easy
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 is
Options
(a) 1 (b) 2 (c) 3 (d) 4
Correct Answer:
3
Explanation: […]
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 and m=–1
Options
(a) 6 (b) 4 (c) 2 (d) 10
Correct Answer: […]
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 is
Options
(a) 2 (b) 4 (c) 1 (d) 3
Correct Answer:
2
Explanation: […]
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:
1
Explanation:
N(7) = 1s²2s²2p² N2⁺ = 1s², 2s², 2p unpaired electrons =1
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:
1
Explanation:
The number of nodal plane are present in a px is one […]
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
(a) 1 (b) 3 (c) 2 (d) 4
Correct Answer:
1
Explanation:
No […]
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
(a) 1 (b) 12.16 (c) 1 x 10⁻³ (d) 12.16 x 10⁻³
Correct Answer: […]
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
(a) 33.65% (b) 32.56% (c) 23.65% (d) 22.65%
Correct Answer:
22.65%
Explanation:
Mol. […]
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 g of HCl?
Options
(a) 0.044 (b) 0.333 (c) 0.011 (d) 0.029
Correct […]