Question: Acid are used to make aqua regia, which of the following noble metals can be dissolved in it?

• 1. Platinum, Palladium, Gold
• 2. Silver, Osmium, Iridium
• 3. Platinum, Palladium, Irridillium
• 4. Platinum, Iridium, Silver

Question: The attractive force among the molecules is stronger in:

• 1. Solid
• 2. Gas
• 3. Liquid
• 4. None of these

Question: Herbicides are______?

• 1. Insect killing chemicals
• 2. Bacteria killing chemicals
• 3. Weed killing chemicals
• 4. none of these

Question: Chest Cavity is separated from abdominal cavity by:

• 1. Larynx
• 2. Ribs
• 3. Diaphragm
• 4. All of these

Question: When clouds pass on through colder region they turn into rain or snow. This process is called?

• 1. Transpiration
• 2. Condensation
• 3. Evaporation
• 4. All of these

Question: A ____________ is a vertical bar graph with no space between the bars.

• 1. Histogram
• 2. Ogive
• 3. Pie Graph
• 4. Cumulative Frequency Polygon

Question: The part of transverse waves, where the particles of the medium are above the undisturbed position is called?

• 1. Trough
• 2. Crest
• 3. Wavelength
• 4. Amplitude

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