Class 10 Science MCQs, Updated for This Session

Q1.Acids generally turn blue litmus paper:

Q2.Bases generally turn red litmus paper:

Q3.The pH scale is used to measure:

Q4.A neutral solution, such as pure water, generally has a pH value close to:

Q5.The reaction between an acid and a base, which typically produces a salt and water, is called a:

Q1.Which of the following is a general physical property of metals?

Q2.The ability of metals to be drawn into thin wires is known as:

Q3.The ability of metals to be hammered or rolled into thin sheets is known as:

Q4.In the reactivity series, metals placed higher are generally:

Q5.Nonmetals generally differ from metals in that nonmetals are usually:

Q1.Carbon atoms are able to form a huge variety of compounds mainly because of their ability to:

Q2.Compounds made up of only carbon and hydrogen atoms are called:

Q3.A covalent bond is formed between two atoms when they:

Q4.The property of carbon atoms to form long chains by bonding with other carbon atoms is called:

Q5.Ethanol is an example of a carbon compound containing which functional group?

Q1.The process by which green plants prepare their own food using sunlight is called:

Q2.The process of breaking down food to release energy within living cells is called:

Q3.In human beings, digested food is mainly absorbed into the bloodstream through the walls of the:

Q4.The main function of the human excretory system is to:

Q5.In the human circulatory system, the heart primarily functions to:

Q1.In the human body, quick responses to stimuli such as touching a hot object are controlled mainly by the:

Q2.A reflex action is best described as:

Q3.Chemical coordination in the human body is mainly carried out by:

Q4.In plants, the response of a plant's stem growing towards light is an example of:

Q5.The basic functional unit of the human nervous system, responsible for transmitting signals, is the:

Q1.Reproduction in which a new organism develops from a single parent, without the involvement of gametes, is called:

Q2.Reproduction that involves the fusion of male and female gametes is known as:

Q3.In flowering plants, the process of transfer of pollen grains from the anther to the stigma is called:

Q4.Which of the following is an example of asexual reproduction seen in simple organisms like Hydra?

Q5.The fusion of a male gamete and a female gamete to form a zygote is called:

Q1.Heredity refers to the:

Q2.The basic units responsible for carrying hereditary information from parents to offspring are called:

Q3.According to Mendel's experiments, a trait that appears in the first generation of a cross, masking another trait, is called:

Q4.A trait that remains hidden in the presence of a dominant trait but can reappear in later generations is called:

Q5.In humans, the sex of a child is generally determined by the type of chromosome contributed by the:

Q1.According to the laws of reflection, the angle of incidence is always:

Q2.A concave mirror is generally used in torches and headlights because it can:

Q3.The bending of light as it passes from one transparent medium to another is called:

Q4.The refractive index of a medium is a measure of:

Q5.A convex lens is also known as a:

Q1.The part of the human eye responsible for focusing light onto the retina is the:

Q2.The ability of the eye's lens to adjust its focal length to focus on both near and distant objects is called:

Q3.A person who can see nearby objects clearly but has difficulty seeing distant objects is said to have:

Q4.The splitting of white light into its constituent colours when it passes through a prism is called:

Q5.The sky appears blue during the day mainly because of the:

Q1.Electric current is defined as the rate of flow of:

Q2.According to Ohm's Law, at constant temperature, the current through a conductor is directly proportional to:

Q3.The SI unit of electrical resistance is the:

Q4.When resistors are connected in series, the total resistance of the combination is:

Q5.The SI unit used to measure electric power is the:

Q1.A magnetic field is produced around a conductor when:

Q2.The magnetic field lines around a straight current-carrying conductor form:

Q3.A solenoid is generally described as:

Q4.An electromagnet is created by:

Q5.The phenomenon in which a changing magnetic field induces a current in a nearby conductor is called:

Q1.An ecosystem is best described as:

Q2.In a food chain, organisms that make their own food, such as green plants, are called:

Q3.Organisms that break down dead plants and animals into simpler substances are called:

Q4.As energy passes from one trophic level to the next in a food chain, the amount of usable energy generally:

Q5.Substances such as certain pesticides that do not break down easily in the environment are described as: