HSC Science (Computer Science) इयत्ता ११ वी - Maharashtra State Board Question Bank Solutions for Chemistry

What is the effect of adding chloride on the equilibrium?

\[\ce{AgCl_{(g)} ⇌ Ag^+ (aq) + Cl^- (aq)}\]

You are given a very old sample of wood. How will you determine its age?

What is the stationary phase in Paper Chromatography?

Why do we see bands separating in column chromatography?

Select and write the most appropriate alternatives from the given choices.

The angle between the two covalent bonds is minimum in:

In Ammonia molecule the bond angle is 107° and in water molecule it is 104°35', although in both the central atoms are sp³ hybridized Explain.

Give a reason for HF is a polar molecule

Which type of hybridization is present in the ammonia molecule?

Write the geometry and bond angle present in ammonia.

F-Be-F is a liner molecule but H-O-H is angular. Explain.

In the case of bond formation in Acetylene molecule: How many covalent bonds are formed?

In the case of bond formation in Acetylene molecule: State number of sigma and pi bonds formed.

In the case of bond formation in Acetylene molecule: Name the type of Hybridization.

Define Bond Enthalpy

Define Bond Length

Predict the shape and bond angles in the following molecule:

CF₄

Predict the shape and bond angles in the following molecule:

NF₃

Predict the shape and bond angles in the following molecule:

HCN

Predict the shape and bond angles in the following molecule:

H₂S

Using data from the Table, answer the following:

1. What happens to the bond length when unsaturation increases?
2. Which is the most stable compound?
3. Indicate the relationship between bond strength and Bond enthalpy.
4. Comment on the overall relation between Bond length, Bond Enthalpy, and Bond strength and stability.