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NCERT Class 10 Science Solutions: Light – Reflection and Refraction Question: Which one of the following materials cannot be used to make a lens? A. Water B. Glass C. Plastic D. Clay Concept in a Minute: To form a lens, a material must be transparent and have a refractive index different from the surrounding medium […]

NCERT Class 10 Science Solutions: Life Processes Question: The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______. A. cytoplasm. B. mitochondria. C. chloroplast. D. nucleus. Concept in a Minute: Cellular Respiration, specifically Aerobic Respiration. The breakdown of pyruvate is a crucial step in aerobic respiration, which releases significant amounts

NCERT Class 10 Science Solutions: How do Organisms Reproduce Question: Which of the following is not a part of the female reproductive system in human beings? A. Ovary B. Uterus C. Vas deferens D. Fallopian tube Concept in a Minute: The female reproductive system in human beings is a complex network of organs responsible for

NCERT Class 10 Science Solutions: Heredity and Evolution Question:  In evolutionary terms, we have more in common with A. a Chinese school-boy. B. a chimpanzee. C. a spider. D. a bacterium. Concept in a Minute: Evolutionary relationships are determined by common ancestry. Organisms that share a more recent common ancestor will have more in common

NCERT Class 10 Science Solutions: Electricity Question: A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R’, then the ratio $RR’$ is ______. A. $125$ B. $15$ C. 5 D. 25 Concept in a Minute: This

NCERT Class 10 Science Solutions: Control and Coordination Question: The gap between two neurons is called a ______. A. dendrite B. synapse C. axon D. impulse Concept in a Minute: Neurons are specialized cells that transmit information in the nervous system. They communicate with each other at junctions called synapses. Explanation: A synapse is the

NCERT Class 10 Science Solutions: Chemical Reactions and Equations Question: What happens when dilute hydrochloric acid is added to iron fillings? Choose the correct answer. A. Hydrogen gas and iron chloride are produced. B. Chlorine gas and iron hydroxide are produced. C. No reaction takes place. D. Iron salt and water are produced. Concept in

NCERT Class 10 Science Solutions: Carbon and Its Compounds Question: Ethane, with the molecular formula C2H6 has ______. A. 6 covalent bonds. B. 7 covalent bonds. C. 8 covalent bonds. D. 9 covalent bonds. Concept in a Minute: The question is about determining the number of covalent bonds in a molecule of ethane (C2H6). To

NCERT Class 10 Science Solutions: Acids, Bases and Salts Question: A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains ______. A. NaCl B. HCl C. LiCl D. KCl Concept in a Minute: Acids react with carbonates to produce carbon dioxide gas. Carbon dioxide gas turns lime water

NCERT Class 10 Maths Solutions: Triangles Question: All circles are ______. A. congruent B. similar Concept in a Minute: Similar figures are figures that have the same shape but may differ in size. Corresponding angles are equal and corresponding sides are in the same ratio. Congruent figures are figures that have the same shape and