HSC Science (Computer Science) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions

Explain Williamson's synthesis.

Slove: \[\ce{2NOBr -> 2NO_{2(g)} + Br_{2(g)}}\]

For the above reaction, the rate law is rate = k[NOBr]². If the rate of reaction is 6.5 × 10⁻⁶ mol L⁻¹ s⁻¹ at 2 × 10⁻³ mol L⁻¹ concentration of NOBr, calculate the rate constant k for the reaction.

The IUPAC name of [Fe(CO)₅] is ______.

What is polysaccharides?

Write two examples of polysaccharides.

The solutions that obey Raoult's law over entire range of concentrations are ______.

Write the name of the monomer of natural rubber.

Another name of terylene is ______.

The rate constant for the reaction:

\[\ce{2N2O_{(s)} ->2N2O4_{(g)}}\] is 4.98 × 10^-4 s^-1.

The order of the reaction is ______.

Write the equation for integrated rate law for a first order reaction.

Show that `t_(1/2)= 0.693/k` for first reaction.

Write the unit of rate constant [k] for the first order reaction.

Name and draw structure of the repeating unit in natural rubber.

Match the following pairs:

What is the action of Methyl chloride in presence of anhydrous aluminium chloride on chlorobenzene?

Write a note on ionic product (K_w) of water

Calculate work done when 0.5 moles of C0₂ is compressed isothermally and reversibly at 298 K from 100 kPa to 263.4 kPa. (R = 8.314 kJ mol^-1 K^-1)

Three moles of ideal gas is compressed isothermally and reversibly to a volume of 2 dm³ . The work done is 2.984 kJ at 22°c. Calculate V₁ for the gas.

Write a note on starch.

Identify the chiral molecule from the following.