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प्रश्न
Complete the statement with the correct words.
__________ are chemicals formed on reaction of a base with an _____ giving salt and water.
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उत्तर
Salts are chemicals formed on reaction of a base with an acid giving salt and water.
संबंधित प्रश्न
Name: an Inert Gas
Indicate whether the following statement is true or false:
Noble gases are high reactive
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.
Atom contains ________ , with positively charged _____.
Select the correct answer from the choice given below.
The unreactive non-metallic element
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 |
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
Complete the table:
| Element | Latin Name | Symbol |
| Mercury | ______ | Hg |
| Lead | Plumbum | ______ |
| Iron | ______ | Fe |
| Potassium | Kalium | ______ |
Reason out
Elements are called semimetals.
Elements contain the ______of the same kind.
