Some Basic Conc...

The prefix used for 10^-18 is:

One atomic mass unit (amu) is closest to:​

The number of base SI units is:

The SI unit of time is:

The two effective drugs which act as life-saving drugs for cancer therapy and AIDS victims respectively are:

Which of the following statements is/are correct?

The coefficient in 6.65 × 10⁴ is:

The ‘Candela’ is the unit of:

The number of significant figures in 3256 is:

The SI unit of electric current is:

A number of significant figures in 0.001520 is:

If the true value for a result is 2.00 g and a student takes 2 measurements and reports the results as 1.95 g and 1.93 g, then we can conclude that:​

The unit of amount of substance is:

Out of the numbers: 6.26, 5.8, 0.00267, 0.03, the one with the least significant figures is:​

If the true value for a result is 3.00 m and a student records two readings as 3.01 m and 2.99 m, then we can conclude that:​

The number of significant figures in 3.1205 are:

The scientific notation for 0.00016 is:​

Suppose the elements X and Y combine to form two compounds XY₂ and X₃Y₂. When 0.1 mole of XY₂ weighs 10 g and 0.05 mole of X₃Y₂ weighs 9 g, the atomic weights of X and Y are:

If we add the numbers 6.68 and 0.8, the result will be:​

Molecular mass of glucose molecule (C₆H₁₂O₆) is: