Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl are mixed
Equal volumes of 0.1 M AgNO₃ and 0.2 M NaCl are mixed. The concentration of NO₃⁻ ions in the mixture…
7 years ago
Chemistry
6.02 x 10²° molecules of urea are present in 100 mL of its solution
6.02 x 10²° molecules of urea are present in 100 mL of its solution. The concentration of the solution is…
7 years ago
In hydrogen atom, energy of first excited state is –3.4 eV. Find out KE
In hydrogen atom, energy of first excited state is –3.4 eV. Find out KE of the same orbit of Hydrogen…
7 years ago
The electronic configuration of four elements are given below. Which elements does
The electronic configuration of four elements are given below. Which elements does not belong to the same family as others…
7 years ago
Which one of the elements has the highest ionisation energy?
Which one of the elements has the highest ionisation energy? Options (a) [Ne] 3s²3p¹ (b) [Ne] 3s²,3p² (c) [Ne] 3s²,3p³…
7 years ago
Which one of the following pairs is isostructural – same shape and hybridization
Which one of the following pairs is isostructural (i.e., having the same shape and hybridization)? Options (a) [BCl₃ and BrCl₃⁻]…
7 years ago
Which of the following is electron-deficient?
Which of the following is electron-deficient? Options (a) (SiH₃)₂ (b) (BH₃)₂ (c) PH₃ (d) (CH₃)₂ Correct Answer: (BH₃)₂Explanation:Electron deficient molecules…
7 years ago
What is the value of electron gain enthalpy of Na+ if IE₁ of Na =5.1 eV ?
What is the value of electron gain enthalpy of Na+ if IE₁ of Na =5.1 eV ? Options (a) –5.1…
7 years ago
The energy of an electron in the nth Bohr orbit of hydrogen atom is
The energy of an electron in the nth Bohr orbit of hydrogen atom is Options (a) –(13.6/n⁴)eV (b) –(13.6/n³)eV (c)…
7 years ago
The energy of second Bhor orbit of the hydrogen atom is -328 kJ mol⁻¹, hence the enregy
The energy of second Bhor orbit of the hydrogen atom is -328 kJ mol⁻¹, hence the enregy of fourth Bohr…
7 years ago