HSC Science (General) 11th Standard - Maharashtra State Board Question Bank Solutions

Solve the following problem:

Express the given quantity with or without exponents as the case may be.

1.23 × 10⁴

Solve the following problem:

Express the given quantity with or without exponents as the case may be.

1.89 × 10^-4

Solve the following problem:

Write the following in exponential notation:

3,672,199

Solve the following problem:

Write the following in exponential notation:

0.000098

Solve the following problem:

Write the following in exponential notation:

0.00461

Solve the following problem:

Write the following in exponential notation:

198.75

Solve the following problem:

Perform the following operation:

3.971 × 10⁷ + 1.98 × 10⁴

Solve the following problem:

Perform the following operation:

1.05 × 10⁻⁴ − 9.7 × 10⁻⁵

Solve the following problem:

Perform the following operation:

4.11 × 10⁻³ + 8.1 ×10⁻⁴

Solve the following problem:

Perform the following operation:

2.12 × 10⁶ − 3.5 × 10⁵

Which of the following techniques is used for the purification of solid organic compounds?

1. Crystallization
2. Distillation

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

When the following bond types are listed in decreasing order of strength (strongest first). Which is the correct order?

Draw Lewis dot diagram for the following.

Hydrogen (H₂)

Draw Lewis dot diagram for the following.

Water (H₂O)

Draw Lewis dot diagram for the following.

Carbon dioxide (CO₂)

Draw Lewis dot diagram for the following.

Methane (CH₄)

Draw Lewis dot diagram for the following.

Lifthium Fluoride (LiF)

Draw Lewis electron dot structure of HF

Draw Lewis electron dot structure of C₂H₆

Draw Lewis electron dot structure of C₂H₄