Question
Which region of Earth's atmosphere is the coldest?
Solution
The mesosphere is known as the coldest layer of Earth's atmosphere. Temperatures here can plummet to as low as -143 degrees Celsius (-225 degrees Fahrenheit), making it a region of intense cold within the atmospheric layers.
Which of the following is true about Helium?
How many oxygen atoms are present in a molecule of Aluminum sulfate, Al₂(SO4₄)₃ ?
What is the chemical formula of bleaching powder?
The Polymer used for Electrical insulation buttons is
The combining power of an element is called its:
Which of the following is a non-metal?
Sphalerite is an ore/mineral of -
An element has an atomic number of 17 and a mass number of 36. How many neutrons are in its nucleus?
What are the constituent metals of the alloy known as 'German Silver'?
"Schist" is the example of which type of rock?
Relevant for Exams:
