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प्रश्न
Name: a Metal Which is a Poor Conductor of Electricity.
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उत्तर
Tungsten
APPEARS IN
संबंधित प्रश्न
Name: a Metal Which is brittle
Name: the Hardest Naturally Occurring Substance
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt, and O; the element which is metallic is ____, an inert element is ____, forms a triatomic molecule is ____, is liquid at room temperature is_ ___.
Write the names of elements from the following symbol:
Pt
Differentiate between homogenous & heterogeneous mixtures.
Give an example of two liquids that form heterogeneous mixtures.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
______ is the life-giving element is the air.
