Assessment Test-7 Everyday Science (MCQs)

The most suitable thermometer for measuring the boiling point of water is:

• (A) Mercury thermometer
• (B) Alcohol thermometer
• (C) Bimetallic thermometer
• (D) Liquid crystal thermometer

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The density of water is greatest at:

• (A) -30°C
• (B) 0°C
• (C) 4°C
• (D) 100°C

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Which one of the following statements is true?

• (A) Gases do not conduct heat
• (B) The best conductors are non-metals
• (C) Conduction currents occurs only in liquids
• (D) A vacuum cannot conduct heat

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Ice can be changed to water by:

• (A) Adding more water molecules
• (B) Changing the motion of the water molecules
• (C) Rearranging the atoms in water molecules
• (D) Destroying the atoms in water molecules

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The building block of elements are called:

• (A) Atoms
• (B) Molecules
• (C) Compounds
• (D) Isotopes

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Boiling of an egg is a change which is:

• (A) Physical
• (B) Chemical
• (C) Physiological
• (D) Morphological

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The temperature of liquid Nitrogen is:

• (A) -32°C
• (B) -80°C
• (C) -100°C
• (D) -196°C

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Which one of the following is an alkali?

• (A) Water
• (B) Vinegar
• (C) Lemon juice
• (D) Slaked lime

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If an alkali is slowly mixed to an acidic solution, the pH of the acidic solution will:

• (A) Increase
• (B) Decrease
• (C) Increase to 7 and then decrease
• (D) Decrease to 7 and then increase

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The usual raw material for ceramics, generally found beneath the top soil is?

• (A) Sand
• (B) Silt
• (C) Clay
• (D) Plaster of Paris

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