Which of the following are matter? Chair Air Love Smell Hate Almonds Thought Cold Cold-drink Smell of perfume.
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(i) Hydrogen + Chlorine → Hydrogen chloride (ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride (iii) Sodium + Water → Sodium hydroxide + Hydrogen
The food we eat consists of so much variety. What are these food items made of? Certain items are needed to prepare a particular dish. Oil, salt, water, spices, etc. are among these items. Think about rice cooked at home. ...
Do you know that desert plants absorb the sunlight during the day and take up carbon dioxide at night and prepare an intermediate which is acted upon by the energy absorbed by the chlorophyll during the day.
Magnesium ribbon burns with a dazzling white flame and changes into a white powder. It is formed due to the reaction between magnesium and oxygen present in the air. What is the name of this white powder?
I need Multiple Choice Questions with answers to practice chapter 1 of class 6 Science for exams. There should be more than 30 MCQs for good practice. If possible some one provide me PDF file to download. There should be ...
Any undesirable change in physical, chemical or biological characteristics of natural resources like air, land, water or soil is known as pollution. All the agents that are responsible for this change are called as pollutants.