Assuming fully decomposed, the volume of CO₂ released at STP on heating 9.85g
Assuming fully decomposed, the volume of CO₂ released at STP on heating 9.85 g of BaCO₃(Atomic mass Ba=137) will be…
7 years ago
Easy
A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength
A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength will be(h=6.6 x 10⁻³⁴ Js)…
7 years ago
What is the ratio of mass of an electron to the mass of a proton?
What is the ratio of mass of an electron to the mass of a proton? Options (a) 1 : 1…
7 years ago
Number of moles of MnO₄⁻ required to oxidize one mole of ferrous oxalate
Number of moles of MnO₄⁻ required to oxidize one mole of ferrous oxalate completely in acidic medium will be Options…
7 years ago
The radius of hydrogen atom in the ground state is 0.53 Å. The radius
The radius of hydrogen atom in the ground state is 0.53 Å. The radius of Li2+ ion (atomic number =…
7 years ago
What is the [OH⁻] in the final solution prepared by mixing 20 mL of 0.05 M Hcl
What is the [OH⁻] in the final solution prepared by mixing 20 mL of 0.05 M Hcl with 30 mL…
7 years ago
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
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