Advertisements
Advertisements
प्रश्न
Give one use of the following substance:
Brass
एक पंक्ति में उत्तर
उत्तर
Brass: To make water taps and utensils.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Give two examples for the following: Metals
Fill in the blank
A pure substance has definite.................. and constant ..............
Is food that we eat a mixture ?
Name the substance you will add to speed up sedimentation.
Find the atomicity of the Following molecule:
Carbon Monoxide
Fill in the blank
A metal which is a poor conductor of electricity is _______.
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:
Ir
There are ______ number of known elements.
Name the element which is used in toothpaste to strengthen our teeth.