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प्रश्न
Select the correct answer to the statement given below:
A non-metal which exists in the liquid state.
पर्याय
Chalk
Oxygen
Silicon
Bromine
Nitrous oxide
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उत्तर
Bromine
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संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
Give one example for the following type of mixtures
solid-solid homogenous mixture.
Choose the most appropriate answer
A solvent of Iodine is
State four differences between compounds and mixtures.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
What are the advantages of chromatography?
Name: a Non-metal Which is a Good Conductor of Electricity.
Name: the Hardest Naturally Occurring Substance
Give three differences between metals and non-metals.
Indicate whether the following statement is true or false:
All elements are artificially prepared
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name - a poisonous gas almost as heavy as air.
Complete the statement with the correct words.
Acid’s are chemicals which are _____ in taste and derived from plants and ________.
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_ ___.
Select the correct answer from the choice given below.
A group of atoms of elements
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 |
Write the names of elements from the following symbol:
Si
Give a reason for the following statement:
Components in a mixture are present in varying proportions and not in a fixed proportion.
With reference to elements – define the term ‘molecule’. Give two examples each of a monoatomic, diatomic & polyatomic molecule.
Classify the following as elements and compounds.
Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium
