science test class 10

What is a combination reaction?

Differentiate between mass and weight.

What is the center of mass?

What is a displacement reaction?

What is a chemical reaction?

What happens to pH when an acid is diluted?

What is ionization energy?

What is the pH of an acidic solution?

Who is known as the father of the periodic table?

What is the force that acts towards the center of a circular path?

Which part of the human brain is responsible for thinking and decision-making?

What is the chemical formula of baking soda?

What is the term for substances that increase the rate of chemical reactions?

What is the SI unit of work?

What is the cause of dispersion of light?

What is the main component of a cell wall in plants?

Which part of the eye controls the amount of light entering it?

What is the phenomenon responsible for the blue color of the sky?

Which type of bond is formed in H₂O?

What is the formula of rust?

Which gas is evolved when calcium carbonate reacts with dilute hydrochloric acid?

Which vitamin helps in blood clotting?

Which process is used for the purification of seawater?

What is the function of xylem in plants?

Which organelle is responsible for photosynthesis?

Which planet is known as the "Red Planet"?

What is the law of reflection of light?

What is the main element present in diamonds?

Which acid is commonly used in car batteries?

Which element is the most abundant in the Earth's crust?

Which organelle is known as the powerhouse of the cell?

What is the function of the ozone layer?

What is the pH value of a neutral solution?

What is the process of breaking down glucose to release energy called?

What is the force acting on an object due to gravity called?

What type of lens is used to correct myopia?

What is the mode of nutrition in fungi?

What is the SI unit of electric current?

What is the name of the device used to measure electric potential difference?

What is the speed of light in a vacuum?

What is the most abundant gas in Earth's atmosphere?

What is the full form of DNA?

What is the process of depositing a layer of metal on another material using electricity?

Which gas is evolved when zinc reacts with hydrochloric acid?

What is the formula of sodium hydroxide?

What is the process of separating grains from chaff?

What is the term for the smallest particle of an element?

What is the name of the process in which water changes directly into vapor without becoming a liquid?

What is the principle of an electric motor?

What is the SI unit of energy?

What is the formula of common salt?

Which vitamin is also known as ascorbic acid?

What is the valency of nitrogen in NH₃?

What is the name of the process by which plants release oxygen?

What is the primary source of energy on Earth?

What is the speed of light in a vacuum?

What type of energy is stored in a stretched rubber band?

What is the formula for calculating speed?

What is the atomic number of oxygen?

What is the unit of frequency?

What is the formula of baking soda?

What is the process of converting liquid into vapor?

What is the pH value of pure water?

What is the main source of energy for the water cycle?

What is the type of bond formed by the sharing of electrons?

What is the chemical formula of limewater?

Which gas is responsible for the greenhouse effect?

What is the term for a chemical reaction in which heat is released?

Which vitamin is essential for healthy eyes?

What is the pH value of acidic solutions?

What is the process by which plants lose water in the form of vapor?

What is the term for the natural process of converting nitrogen gas into compounds usable by plants?

What is the term for the splitting of light into its constituent colors?

Which organ in the human body stores bile?

What is the chemical name of vinegar?

What is the process by which plants convert sunlight into food?

What is the energy change in a chemical reaction that absorbs heat?

What is the term for the splitting of a nucleus into two smaller nuclei, releasing energy?

What is the chemical name of common salt?

What is the approximate percentage of nitrogen in Earth's atmosphere?