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Chemistry Q 01

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  1. A Compound Consists of 80% by mass of carbon and 20 by mass of hydrogen. Calculate its empirical formula. Ans:   Empirical Formula C1:H3 CH3 C:H 80/12:20/1 moles = 6.667/6.667:20/6.667 divide by he smallest  => 1:3 2.Which separating techniques can be used to  separate a solution(mixture of a solute and solvent). Ans: Simple Distillation 3 Study the electronic configuration of  sodium and chorine atoms -sodium: 2.8.1 -chorine: 2.8.7 what is the charges of sodium atom? Ans :Positive Charge 4.which non metal is used to sterilize water? Ans: Chlorine 5.Define the term isotopes? Ans: I isotopes are atoms of the same element      having the same number of of protons      but different number of neutrons. 6. An Acid is said to have a sour taste. What particle of an ACID is responsible  for the sour taste? Ans: Hydrogen ion:  Acidity is determined by  the number of Hydrogen ion 7.Define a salt and give one example. Ans: A salt is a compound formed when when the hydrogen ions in an aci
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Biology Q01

                General Info 1.The Largest organ of Human Body is? Ans: Skin 2.How many total bone in human body? Ans: 206 3.How man total muscle in human body? Ans: 639 4.Name the largest gland of human body? Ans: Liver 5.Name the Largest artery of Human Body? Ans: Aorta 6.The Smallest muscle of Human body is? Ans: Stapedius 7.The River of life is? Ans: Blood 8.What is the Normal Temperature of Human body is? Ans: 37 degree Celsius / 98.6 degree F 9.What is the life span of RBC? Ans: 120 days 10.What is the life span of WBC? Ans:10-1 days 11.The Largest part of the brain is? Ans: Cerebrum 12.The Largest endocrine gland is? Ans: Thyroid gland 13.The Smallest cell in human body is? Ans: Male Sperm 14. The Largest cell in human body is? Ans: Female Ovum 15. What is the PH of Blood? Ans: 7.40 16. What is the Blood bank in human body? Ans: Spleen 17. The Normal pulse rate for adults is? Ans: 72/mint 18.How many Number of chromosomes in human Ans: 46 19.How many total blood in human body i
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Physics Q01

 1.NEWTON is the unite of? ans : force 2. 1 pound is equal to? ans : 454g 3. Unit of temperature is/are? ans : contigrate,farhrenheit,reaumur 4.MKS stand for? ans : metre-kilogram-second 5. SI unit of Potential difference is ans : volt 6 Which of the following is the vector quantity? ans :Momentum 7.SI unit of frequency is ans:Hz 8.Depth of Ocean is measured by an instrument called? ans:fathometer 9.How many liters are present in one Gallon ans : 4.54 10. Unit of work in CGS system is? ans :erg 11. Which of the following is a scalar quantity? ans :Distance 12. SI unit used to measure temperature is ans :Kelvin 13. The working of washing machine is based on ans : centrifugal force 14. Negative acceleration of a body is called ans : displacement 15.SI unit of measurement of frequency is  ans :hertz 16.1 joule is equal to ans :10  7  erg 17.Kilowatt-hours is the unit of ans :energy 18.Which instrument is used for recording winds velocity ans : Anemometer 19.SI unit used to measure tempera
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