Download App

Metals and Non-Metals — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceMetals and Non-Metals3 Marks
Question
Define the terms:
  1. mineral.
  2. ore.
  3. gangue.
✓

Answer

  1. Minerals: The natural materials in which the metals or their compounds are found in earth are called minerals.
  2. Ores: Those minerals from which the metals can be extracted conveniently and profitably are called ores.
  3. Gangue:The unwanted impurities like sand, rocky material, earthy particles etc. present in an ore are called gangue.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 Mark Questions]" from Metals and Non-Metals→Metals and Non-Metals — all question types→Science STD 10 question papers→CBSE Board STD 10 question papers→CBSE Board question paper generator→

Similar questions

$i.$ Distinguish between ionic and covalent compounds under the following properties:
$a.$ Strength of forces between constituent elements
$b.$ Solubility of compounds in water
$c.$ Electrical conduction in substances
$ii.$ Explain how the following metals are obtained from their compounds by the reduction process:
$a.$ Metal $M$ which is in the middle of the reactivity series.
$b.$ Metal $N$ which is high up in the reactivity series. Give one example of each type.
→
With the help of a flow chart explain in brief how the sex of a newborn is genetically determined in human beings. Which of the two parents, the mother or the father, is responsible for determination of the sex of a child?
→
A boy uses spectacles of focal length -60cm. Name the defect of vision he is suffering from. Which lens is used for the correction of this defect? Compute the power this lens.
→
What makes the candle flame yellow and luminous?
→
You are given a dry cell, a torch bulb with holder, wires and crocodile clips. How would you use them to distinguish between samples of metals and non-metals?
→
How do Mendel’s experiments show that traits are inherited independently?
→
Why ions move freely and conduct electricity in the molten form?
→
What is the difference between the molecules of soaps and detergents, chemically? Explain the cleansing action of soaps.
→
It is possible to replace resistors joined in series by an equivalent single resistor of resistance. How?
→
A convex lens of focal length 20cm can produce a magnified virtual as well as real image. Is this a correct statement? If yes, where shall the object be placed in each case for obtaining these images?
→