HSC Science Class 11 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Chemistry

If K_b and K_f for a reversible reaction are 0.8 × 10^-5 and 1.6 × 10^-4 respectively, the value of the equilibrium constant is,

At a given temperature and pressure, the equilibrium constant values for the equilibria

\[\ce{3A2 + B2 + 2Cr <=>[K1] 2A3BC}\] and

\[\ce{A3BC <=> 3/2 A2 + 1/2 B2 + C}\]

The relation between K₁ and K₂ is

Splitting of spectral lines in an electric field is called __________.

According to the Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon?

Which of the following is not a general characteristic of equilibrium involving physical process

Match the equilibria with the corresponding conditions:

1. Liquid ⇌ Vapour
2. Solid ⇌ Liquid
3. Solid ⇌ Vapour
4. Solute(s) ⇌ Solute (Solution)

1. Melting point
2. Saturated solution
3. Boiling point
4. Sublimation point
5. Unsaturated solution

28 g of Nitrogen and 6 g of hydrogen were mixed In a 1 litre closed container. At equIlibrium 17 g NH₃ was produced. Calculate the weight of nitrogen, hydrogen at equilibrium.

For the following reactions

1. \[\ce{CH3CH2CH2Br + KOH → CH3 – CH = CH2 + KBr + H2O}\]
2. \[\ce{(CH3)3CBr + KOH → (CH3)3COH + KBr}\]
3. 
   

Which of the following statement is correct?

What is the hybridisation state of benzyl carbonium ion?

Decreasing order of nucleophilicity is ______.

Which of the following species is not electrophilic in nature?

Homolytic fission of covalent bond leads to the formation of ______.

Hyper Conjugation is also known as

Which of the group has highest + I effect?

Which of the following species does not exert a resonance effect?

- I effect is shown by ______.

Which of the following carbocation will be most stable?

Assertion: Tertiary Carbocations are generally formed more easily than primary Carbocations ions.

Reason: Hyper conjucation as well as inductive effect due to additional alkyl group stabilize tertiary carbonium ions.

Heterolytic fission of C–C bond results in the formation of ______.

Which of the following represent a set of nucleophiles?