Chemistry

An aqueous solution of glucose is 10% in strength. The volume in which 1g mole

An aqueous solution of glucose is 10% in strength. The volume in which 1 g mole of it is dissolved…

The weight of one molecule of a compound C₆₀H₁₂₂ is

The weight of one molecule of a compound C₆₀H₁₂₂ is Options (a) 1.2 x 10⁻²° gram (b) 1.4 x 10⁻²¹…

If 1 mL of water contains 20 drops then number of molecules in a drop of water

If 1 mL of water contains 20 drops then number of molecules in a drop of water is Options (a)…

The number of oxygen atoms in 4.4g of CO₂ is

The number of oxygen atoms in 4.4g of CO₂ is Options (a) 1.2 x 10²³ (b) 6 x 10²² (c)…

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…

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)…

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…

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…

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 =…

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…