CLASS: IX :: Atoms and Molecules
CLASS: IX NCERT (CBSE) Chemistry Atoms and Molecules Question 1: In water, hydrogen and oxygen are present in the ratio of ________. 1. 1:8 2. 2:12 3. 2:3 4. 1:2 Answer: 1 Question 2: An example of a triatomic molecule is ___________. 1. Ozone 2. Nitrogen 3. Carbon monoxide 4. Hydrogen Answer: 1 Question 3: The quantity of matter present in an object is called its _________. 1. Mass 2. Volume 3. Density 4. Vapour pressure Answer: 1 Question 4:...
CLASS: IX :: Is matter around us Pure
CLASS: IX NCERT (CBSE) Chemistry Is matter around us Pure (MCQ) Question (1): A mixture of oil and water is an example of _____________. 1. compound 2. two elements 3. mixture 4. true solution Ans: 3 Question (2): A mixture of mercury and copper is an example of _______. 1. solid and solid 2. liquid and solid 3. solid and liquid 4. liquid and liquid Ans: 2 Question (3): Which of these elements is...
CLASS: IX :: Matter in Our Surroundings
CLASS: IX NCERT (CBSE) Chemistry Matter in Our Surroundings Question 1: Matter has ___________. 1. no mass but occupies space 2. mass but occupies no space 3. mass and occupies space 4. no mass and occupies no space Answer: 3 Question 2: The gaseous form of water is called as _______. 1. water gas 2. water vapour 3. fog 4. snow Answer: 2 Question 3: The state of matter with only one free surface...
CLASS: X :: Management of Natural Resources
CLASS: X NCERT (CBSE) BIOLOGY Management of Natural Resources Question 1: Which one of the following is an example of biotic component of environment? 1. wind 2. water 3. vegetation 4. temperature Answer: 3 Question 2: Which of the following is a non renewable resource? 1. solar Energy 2. hydrocarbon fuel 3. flora and fauna 4. nuclear power Answer: 2 Question 3: Sanctuaries are established to_______. 1. develop commercial tree plantation 2. conduct ecotourism on wildlife 3. protect...
CLASS: X :: Our Environment
CLASS: X NCERT (CBSE) BIOLOGY Our Environment Question 1: A natural phenomenon that becomes harmful due to pollution is _____________. 1. global warming 2. ecological balance 3. greenhouse effect 4. desertification Answer: 3 Question 2: The pollutant responsible for ozone holes is ____________. 1. CO2 2. SO2 3. CO 4. CFC Answer: 4 Question 3: One of the best solutions to get rid of non-biodegradable wastes is _________________. 1. burning 2. dumping 3. burying 4. recycling Answer: 4 Question 4:...
CLASS: X :: Electricity
CLASS: X NCERT (CBSE) PHYSICS Electricity Multiple Choice QUESTIONs Question 1: Which of the following statements does not represent ohm's law? 1. current / potential difference = constant 2. potential difference / current = constant 3. potential difference = current x resistance 4. current = resistance x potential difference Answer: 4 Question 2: The unit of current is _____________. 1. ampere 2. watt 3. volt 4. coulomb Answer: 1 Question 3: The potential difference required...
CLASS: X :: Human Eye and Colourful World
CLASS: X NCERT (CBSE) PHYSICS Human Eye and Colourful World Question 1: The change in focal length of an eye lens to focus the image of objects at varying distances is done by the action of ________. 1. pupil 2. ciliary muscles 3. retina 4. blind spot Answer: 2 Question 2: Far point of a normal eye is situated at _________. 1. 25 cm 2. infinity 3. 50 cm 4. 400 cm Answer:...
CLASS: X :: Light-Reflection and Refraction
CLASS: X NCERT (CBSE) PHYSICS Light-Reflection and Refraction Multiple Choice Questions Light-Reflection Question 1: Light is a form of energy produced by a ______ . 1. luminous object 2. transparent object 3. non-luminous object 4. opaque object Answer: 1 Question 2: An example for non-luminous object is ___________. 1. a candle 2. the sun 3. an electric bulb 4. the moon Answer: 4 Question 3: The phenomenon by which the incident light falling on a surface...
CLASS: X :: Heredity and Evolution
CLASS: X NCERT (CBSE) BIOLOGY Heredity and Evolution Question 1: Alternative forms of a gene are called _____________. 1. loci 2. multiples 3. chromosomes 4. alleles Answer: 4 Question 2: Heredity or inheritance of specific traits became clearer due to 1. Lamarck's theory 2. Mendel worked on garden peas 3. Darwinism 4. Neo-Darwinism Answer: 2 Question 3: Which of these is homozygous recessive? 1. Ss 2. ss 3. SS 4. s Answer: 2 Question 4: What will be the genotypic...
CLASS: X :: How do Organisms Reproduce
CLASS: X NCERT (CBSE) BIOLOGY How do Organisms Reproduce Question 1: The male hormone testesterone is produced by _________. 1. Leydig cells 2. Seminiferous tubules 3. Epididymis 4. Vas deferens Answer: 1 Question 2: Male gonads are called _______________. 1. testes 2. ovaries 3. scrotal sacs 4. sperm duct Answer: 1 Question 3: The fertilized egg is called ______________. 1. ovum 2. blastocyst 3. diploid cell 4. zygote Answer: 4 Question 4: The ultimate stoppage of menstrual cycle is called...
