Nridev

Which of the following substances does not show the property of sublimation?

• Iodine

• Camphor

• Naphthalene

• Copper

Which of the following statement is correct?

• Substances that exist as liquids at room temperature typically have melting and boiling points lower than that of room temperature.

• The process in which a substance transitions directly from a solid to a gas state without going through the liquid state is known as sublimation.

• To convert a temperature from the Celsius scale to the Kelvin scale, add 273 to the given temperature

• The density of ice is lower than that of water

What is the physical state of matter in which particles have the least kinetic energy?

• Solid

• Liquid

• Gas

• Plasma

The process of changing a liquid into a gas is called

• Condensation

• Evaporation

• Sublimation

• Fusion

When converting 308 K, 329 K, and 391 K to the Celsius scale, what is the correct sequence of temperatures?

(a) 33°C, 56°C and 118°C

(b) 35°C, 56°C and 119°C

(c) 35°C, 56°C and 118°C

(d) 56°, 119°C and 35° C

• 33°C, 56°C and 118°C

• 35°C, 56°C and 119°C

• 35°C, 56°C and 118°C

• 56°, 119°C and 35° C

Which structure acts as a barrier between the cell and its surroundings?

• Nucleus

• Cell wall

• Cell membrane

• Cytoplasm

Which structure provides support and protection to plant cells?

• Nucleus

• Cellwall

• Cell membrane

• Cytoplasm

Which structure contains genetic material and controls cell activities?

• nucleus

• cell wall

• cell membrane

• cytoplasm

Which organelle is responsible for protein synthesis?

• Endoplasmic reticulum

• Golgi apparatus

• Lysosomes

• Mitochondria

What is a cell made up of?

• Proteins

• Carbohydrates

• Nucleic acids

• All of the above