Is Matter Around Us Pure Test

Is Matter Around Us Pure

This is Is Matter Around Us Pure Test-01 for CBSE class 09 Science.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Name the most abundant element in earth’s crust?
  • A
    Hydrogen
  • B
    Nitrogen
  • C
    Oxygen
    Correct
  • D
    \({\text{C}}{{\text{O}}_{\text{2}}}\)
2
A Substance can be beaten into sheets and beaten into wires. What will you call it?
  • A
    It is both sonorous and ductile
  • B
    It is both brittle and lustrous
  • C
    It is both malleable and brittle
  • D
    It is both Malleable and ductile
    Correct
3
What are the major constituents of universe?
  • A
    Helium and Nitrogen
  • B
    Hydrogen and Helium
    Correct
  • C
    Hydrogen and oxygen
  • D
    Nitrogen and oxygen
4
Which of the following element has the characteristics of both metals and non – metals?
  • A
    Arsenic
    Correct
  • B
    Nitrogen
  • C
    Phosphorus
  • D
    Carbon
5
Which of the following has the smell of rotten egg?
  • A
    Iron Sulphide
  • B
    Hydrogen Sulphide
    Correct
  • C
    Copper Sulphide
  • D
    Calcium Sulphide
6
Which of the following substance is pure?
  • A
    Both a and b
    Correct
  • B
    Element
  • C
    Compound
  • D
    Mixture
7
Who discovered Radium?
  • A
    Watson and crick
  • B
    Robert Brown
  • C
    None of these
  • D
    Marie Curie
    Correct
8
A combination of common salt and iron filings is a
  • A
    Compound
  • B
    Elements
  • C
    both a and b
  • D
    Mixture
    Correct
9
At room temperature, a non-metal which is liquid is
  • A
    Fluorine
  • B
    Oxygen
  • C
    Bromine
    Correct
  • D
    Sulphur
10
The element which is a liquid slightly above \({\text{3}}{0^0}{\text{C}}\) is
  • A
    Sodium
  • B
    Magnesium
  • C
    Cesium
    Correct
  • D
    Lithium
11
Which one is NOT an element?
  • A
    Non-metals
  • B
    Semi-metals
  • C
    Alloys
    Correct
  • D
    Metals
12
A hard substance when bent produces a tinkling sound. Predict its nature.
  • A
    Non metal
  • B
    Metal
    Correct
  • C
    All of these
  • D
    Compound
13
A shining thick liquid is often used in glass thermometers. Name it.
  • A
    Calcium
  • B
    Mercury
    Correct
  • C
    Gallium
  • D
    Bromine
14
When two substances A and B are powdered together in a pestle and mortar, a large amount of heat is evolved. As a result a new substance C is formed. What is the nature of the new substance?
  • A
    Both a and b
  • B
    Mixture
  • C
    Compound
    Correct
  • D
    None of these
15
A solution has been prepared by dissolving 10 g of urea in 90 g of water. What is the mass percent of urea in the solution?
  • A
    10%
    Correct
  • B
    2%
  • C
    100%
  • D
    5%