LMS

4.4g of unknown gas occupies a volume of 2.24 dm³ at STP unknown gas is

Mass of Al in 51g of Al₂O₃

Mass of one carbon atom is

10.5g of lime is produced if 25g of lime stone is roasted. What is % yield

13g of Cr react with how much mass of oxygen to produced Cr₂O₃

Which is correct statement about limiting reactant.

Relationship between empirical and molecular formula is M.F = n(E.F). For which compound value of n=1

Mole of SO₂ if it contains 8g of oxygen

How many moles of NH₃ are produced on reacting 2 moles of N₂ with 8 moles of H₂

A compound has an empirical formula CH₂O and molecular formula mass as 60g/mol, identify the compound

What is volume occupied by 4.4g of N₂O at STP

11200 cm³ of oxygen gas is collected at STP from Hydrilla plant by photosynthesis. The mass of oxygen gas produced is

Which of the following has minimum mass

3NA number of ionizable H+ are present in 1mole of

Empirical formula of a compound CH₂O with molar mass 180gmol-1 belongs to which class of biochemical compound

What is the mass of CaCO₃ which on heating produces 0.25 moles of CO₂ gas

Select the suitable term about 17g of OH–

How many gram atoms in 0.1g of calcium

Which statement is incorrect about Helium

A sample of liquid consisting of carbon, hydrogen and oxygen was subjected to combustion analysis, 12g of compound gave 11g of CO₂. What is %age of carbon

1gram atom of carbon is present in one mole of which of the following specie/substance

Determine the number of moles of O-atom in 18g of C₆H₁₂O₆

Which is a macromolecule

The molecular mass of D2O is

Total number of oxygen atoms are present in 44g of N₂O

One mole of an organic compound is completely burnt in excess of oxygen which compound produces exactly three moles of water

The molar mass of a compound is 180g/mol with 40%, 6.67%, 53.3% of C, H and oxygen respectively calculated from combustion analysis. Empirical formula of this compound is

When 2g H₂ gas and 16g O₂ gas react completely to produce H₂O. What is non-limiting reactant

A man drinks 250cm³ water in a glass containing 18gram glucose(C₆H₁₂O₆) the minimum number of atoms received by him are of

At STP a gas which has maximum volume

How much oxygen is required to react completely with 54g of Al to form alumina

The term relative atomic mass is used for

All elements of the periodic table chemically differ from each other due to

The correct relation between empirical formula and molecular formula is

Empirical formula is the simplest atomic ratio of atoms in a molecule. Which compound does not have empirical formula CH₂O

Combustion analysis is primarily used to determine

Mole of a substance can be related

The mass of one mole of electron is

The number of carbon atoms in 45g of C₆H₁₂O₆

Combustion analysis cannot determine empirical formula of

Volume of nitric oxide gas produced by the following reaction of 7g N₂ with excess of oxygen is

Number of grams of NaOH required for complete neutralization of 1mole of H₃PO₄ on its complete ionization

H₂O, HF and Na+ have same

Number of molecules in 18g of glucose

How many chlorine atoms are in 2 moles of Cl

The statement which is incorrect about stoichiometric calculation

The formula which shows the simplest whole number ratio for the atoms of different in compound

Amount of product based on chemical reaction is called

In combustion analysis, H₂O absorber contain

1.505 ×10²³ molecules of NH₃ at STP has mass