Some Basic Conc...

Dimensions of pressure are same as that of

Significant figures in 0.00051 are

Which of the following elements of matter would best convey that there is life on earth?

The number of significant figures in 60.0001 is

In known elements, the maximum number is of

ng of substance X reacts with mg of substance Y to form pg of substance R and qg of substance S. This reaction can be represented as, X + Y = R + S. The relation which can be established in the amounts of the reactants and the products will be.

Equivalent weight of crystalline oxalic acid is

When potassium permanganate is titrated against ferrous ammonium sulphate, the equivalent weight of potassium permanganate is

The specific heat of a metal is 0.16 its approximate atomic weight would be

The molecular weight of a gas is 45. Its density at STP is

A molar solution is one that contains one mole of a solute in

One mole of calcium phosphide on reaction with excess of water gives                                     

The numbers of moles of $BaCO_3$ which contain 1.5 moles of oxygen atoms is

2g of oxygen contains number of atoms equal to that in

Irrespective of the source, pure sample, of water always yields 88.89% mass of oxygen and 11.11% mass of hydrogen. This is explained by the law of

Assuming fully decomposed, the volume of $CO_2$ released at STP on heating 9.85 g of $BaCO_3$ (Atomic mass, Ba = 137) will be

10 mL of 2 M NaOH solution is added to 200 mL of 0.5 M of NaOH solution. What is the final concentration of the solution?

The ppm level of $F^-$ in a 500 g sample of a tooth paste containing 0.2g $F^-$ is

Which of the following changes with increase in Temperature?

A student performs a titration with different burettes and finds titre values of 25.2 mL, 25.25 ml and 25.0 mL The number of significant figures in the average titre value is