Exercise A choose the correct option for each of the following. 1. Which of the following is not a physical property to describe the appearance of materials? (a) Lustre (b) Hardness (C) Roughness (d) Reactivity 2. The property of a material to shine is called (a) texture (b) solubility (c) lustre (a) hardness 3. Which of the following is immiscible in water? (a) Alcohol (b) Oil (C) Lemon juice (d) Honey 4. Which of the following objects does not sink in water? (a) Stone (b) Plastic ball (c) Key (d) Coin 5. Metals are (a) lustrous (9) conductors of heat (d) all of these (b) hard All in the blanks using the correct words. busins
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Exercise A choose the correct option for each of the following. 1. Which of the following is not a physical property to describe the appearance of materials? (a) Lustre (b) Hardness (C) Roughness (d) Reactivity 2. The property of a material to shine is called (a) texture (b) solubility (c) lustre (a) hardness 3. Which of the following is immiscible in water? (a) Alcohol (b) Oil (C) Lemon juice (d) Honey 4. Which of the following objects does not sink in water? (a) Stone (b) Plastic ball (c) Key (d) Coin 5. Metals are (a) lustrous (9) conductors of heat (d) all of these (b) hard All in the blanks using the correct words. busins
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no 1 . Reactivity
no 2. lustre
no 3 Alcohol
no.4 Plastic ball
no 5 all of these
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