Question: Which phenomenon is responsible for mirage in desert?

• 1. Refection
• 2. Refraction
• 3. Diffraction
• 4. Total Internal Reflection

Question: Which one of the following is not a unit of distance?

• 1. Foot Path
• 2. Light Year
• 3. Heavy Year
• 4. Foot Candle

Question: What is the molecular formula for Nitric acid_____________?

• 1. HNO2
• 2. HNO3
• 3. HN2O2
• 4. H2NO4

Question: Due to the effect of acid rain, stone buildings are corroded. This type of damage to the stone building is called_________?

• 1. Stone Bleeding
• 2. Stone Disease
• 3. Stone Cancer
• 4. All of these

Question: The homogeneous mixture of two or more than two components is called:

• 1. Solution
• 2. Solute
• 3. Solvent
• 4. All of these

Question: Oil of vitriol is_________?

• 1. Nitric acid
• 2. Hydrochloric acid
• 3. Phosphoric acid
• 4. Sulfuric acid

Question: An Acid is indicated by _____final color on litmus:

• 1. Red
• 2. Orange
• 3. Colorless
• 4. None

Question: Acid rain is mainly caused by emissions of:

• 1. Sulfur dioxide and potassium niterate
• 2. Sulfur dioxide and Nitrogen oxide in atmosphere
• 3. Both
• 4. None

Question: The solution of Acetic acid is known as:

• 1. Vinegar
• 2. Salt
• 3. Lemon
• 4. None

Question: Formic Acid obtained from:

• 1. Ants
• 2. Bee
• 3. Tomato
• 4. None