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प्रश्न
Fill in the blank
A liquid non-metal is _______.
उत्तर
A liquid non-metal is bromine
APPEARS IN
संबंधित प्रश्न
Define: Elements
Correct the following statement:
CO and Co both represents cobalt.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Tick (√) the correct alternative from the choice given for the following statement.
Gold is used to make jewellery because
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
Match the compounds in List I – 1 to 20 with their correct formulas from in List II-A to T.
| List I | List II | ||
| 1 | Hydrochloric acid | A | NaCI |
| 2 | Potassium Hydroxide | B | NaOH |
| 3 | Sulphuric Acid | C | KCI |
| 4 | Zinc Hydroxide | D | Ca(OH)2 |
| 5 | Sodium Chloride | E | CaS |
| 6 | Nitric Acid | F | CuSO4 |
| 7 | Calcium Hydroxide | G | CaCO3 |
| 8 | Carbonic Acid | H | NH4CI |
| 9 | Sodium hydroxide | I | HCI |
| 10 | Copper sulphate | J | ZnO |
| 11 | Potassium Chloride | K | HNO3 |
| 12 | Calcium Carbonate | L | H2CO3 |
| 13 | Magnesium Sulphide | M | MgS |
| 14 | Zinc Sulphate | N | MgO |
| 15 | aluminium Hydroxide | O | KOH |
| 16 | Sodium Carbonate | P | ZnSO4 |
| 17 | Calcium Sulphide | Q | Na2CO3 |
| 18 | Magnesium Oxide | R | H2SO4 |
| 19 | Zinc Oxide | S | AI(OH)3 |
| 20 | Ammonium Chloride | T | Zn(OH)2 |
State four differences between – elements, compounds and mixtures with suitable examples.
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
Select the correct answer from the choice given below to complete the sentence :
Compounds are ____________ in nature.
Name the constituents of water.
