CLASS: X NCERT (CBSE) SCIENCE: Chemistry – Metals and Non-metals
SUMMARY
Metals and Non-metals
• An electrolyte is a compound (salt, acid or base), which in solution or in a molten state conducts an electric current...
CLASS: X NCERT (CBSE) SCIENCE: Chemistry- Acids, Bases and Salts
Summary
Acids, Bases and Salts
1. Acidic substances generate H+ ions in the medium, while basic ones liberate OH- ions in the medium.
2. Certain dyes are...
Dr. APJ Abdul Kalam
Dr. APJ Abdul Kalam: The Missile Man of India and People's President
Introduction
Dr. Avul Pakir Jainulabdeen Abdul Kalam, popularly known as APJ Abdul Kalam, was...
NCERT brings out learning indicators for classes I to VIII
NCERT brings out learning indicators for classes I to VIII
Learning indicators for languages — English, Urdu and Hindi — have been fine-tuned to include...
pH of Common Chemicals
pH of Common Chemicals: Acids & Bases
List of the approximate pH of some common chemicals:
pH of Common Acids
0 - Hydrochloric Acid (HCl)
1.0 - Battery...
Engineering Quiz
Engineering Quiz
1. What kind of bridge is the Golden Gate Bridge in San Francisco?
2. In electricity, voltage is measured in volts while current is...
Matter in Our Surroundings SCIENTIA EDUCARE
CLASS: IX NCERT (CBSE)
Chemistry: For Class 9
Matter in Our Surroundings
SUMMARY
Matter is any substance that has mass and occupies space. Matter is made up of...
Nature Quiz
Nature Quiz
1. What is the name of the world’s largest reef system?
2. Do male or female mosquitoes bite people?
3. True or false? Earth Day...
Atom Quiz
Atom Quiz
1. True or false? Protons have a negative charge.
2. True or false? Atoms are bigger than neutrons.
3. True or false? Protons and neutrons...
States of Matter Quiz
States of Matter Quiz
1. When a solid changes to a liquid it is called what?
2. True or false? Liquids are easy to compress.
3. When...
Element-Symbol
Element-Symbol
1. Hydrogen - H
2. Helium - He
3. Lithium - Li
4. Beryllium - Be
5. Boron - B
6. Carbon - C
7. Nitrogen - N
8. Oxygen -...
ACID BASE QUIZ
Acid Base Quiz
What is an Acid?
Acids in solution have a pH below 7.0, a sour taste, releases hydroxyl ions in water, and turn litmus...
GENERAL SCIENCE QUIZ
General Science Quiz
1. What is the biggest planet in our solar system?
2. What is the chemical symbol for the element oxygen?
3. Another name for...
EARTH QUIZ
Earth Quiz
1. What is the name of the largest ocean on earth?
2. What are the two main metals in the earth’s core?
3. Which is...
FOOD QUIZ
Food Quiz
1. The rice dish ‘paella’ comes from what country?
2. Deer meat is known by what name?
3. Are humans omnivore, herbivore or carnivore?
4. What...
Technology Quiz
Technology Quiz
1. Solar power generates electricity from what source?
2. Did the Apple iPhone first become available in 2005, 2006 or 2007?
3. In terms of...
Water Quiz
Water is one of the most common substances on the Earth. Covering over 70% of the surface of the Earth, it is easy to...
ELECTRICITY QUIZ
Electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects,...
Biology Quiz
Biology Quiz
1. Which famous scientist introduced the idea of natural selection?
2. A person who studies biology is known as a?
3. Botany is the study...
