Advertisements
Advertisements
प्रश्न
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
विकल्प
electron
proton
neturon
Advertisements
उत्तर
proton
APPEARS IN
संबंधित प्रश्न
Classify the following substances into compounds and mixtures:
Why is it necessary to separate the constituents of a mixture.
What are the advantages of chromatography?
Give two examples of the following.
Non-metals which are lustrous
Give two examples of the following.
Elements which are liquids
Mention three gaseous elements and write their molecular formulae
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
Write the names of elements from the following symbol:
Cd
Select the correct answer to the statement given below:
The chemical name for dinitrogen oxide [N20].
Select the correct answer from the choice in the bracket.
The least reactive metal.
State five different characteristics of compounds.
Select the correct answer from A, B, C, D & E for the statement given below :
A metalloid.
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 :
Compounds are ____________ in nature.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Atoms: Fundamental particle of an element::______ : Fundamental particles of a compound.
Differentiate between elements and compounds.
Why are utensils made up of aluminium and brass?
______ is a mixture of gases.
Reason out
Elements are called semimetals.
