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2.0 gram of a metal burst in oxygen give 3.2 gram of its oxide. 1.42 gram of the same metal heat in steam give 2.27 gram of its oxide which toys shown by this data?

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Ques : 2.0 gram of a metal burst in oxygen give 3.2 gram of its oxide. 1.42 gram of the same metal heat in steam give 2.27 gram of its oxide which toys shown by this data?  Ans : In the first compound, 3.2 gram of metal oxide contained 2.0 gram of metal 100 gram of metal oxide contained metal =2.0/3.2 × 100= 62.5 g :· % metal in first compound= 62.5% In the second compound, 2.27 gram of metal oxide contains metal = 1.42 gram 100 gram of metal oxide contains the metal= 1.42/2.27×100=62.55 gram :· % metal in first compound= 62.55% Thus, the percentage of metal in metal oxide obtained from to experiment is nearly same. Hence, the above data illustrate the law of constant composition.  <<   Previous                                                       Next   >>
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Should Wizard Hit Mommy? Summary Class 12th English || Theme || Characters || Gist of the story Vistas class 12 English

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Should Wizard Hit Mommy? Summary   John Hoyer Updike (March 18, 1932 – January 27, 2009) was an American novelist, poet, short-story writer, art critic, and literary critic. One of only three writers to win the Pulitzer Prize for Fiction more than once. Updike published more than twenty novels, more than a dozen short-story collections, as well as poetry, art and literary criticism and children’s books during his career. Introduction Little children love to hear stories from their parents at bedtime. Such stories are mostly fables and have no logic behind them. Many a time, parents make up stories out of their own head. Little children take them as literally true. But as the child grows up, he becomes inquisitive. He begins to ask many questions. He wants to know why and how certain things happen. He wants to know the reason behind things. Sometimes parents take this questioning of the child as an affront. They try to discourage it. They want the child to accept as true whatever is...
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Test and Measurement in Sports Case Study Based Questions Chapter 6 Class 12 Physical education

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 1. Mr. Lakshman, aged 65 years worked as a civil engineer in a construction company. He had to walk and climb a lot as part of his job. After retirement, he settled with his son spending time with his grandchildren. Now a days he is experiencing difficulty in doing certain chores which involves physical movement.  (i) Which of the following tests would you recommend to check Mr. Lakshman’s fitness? (a) Harvard step test  (b) Rikli & Jones test (c) AAHPER test (d) Rock port test (ii) How many series of tests are there in the prescribed fitness test for Mr. Lakshman? (a) 8  (b) 6 (c) 5  (d) 4 (iii) Chair sit & reach test is done to check ____________ (a) Agility (b) Speed (c) Flexibility (d) Strength (iv) Pick the odd one out. (a) Arm curl test (b) Chair stand test (c) 6 min walk test (d) Partial curl up (v) The 8 foot up &go test, as shown in the picture is performed to assess _________ (a) Agility (b) Endurance (c) Speed (d) Strength 2. (i) Both the...
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Biomechanics and Sports Mcqs chapter 8 Class 12 Term 1 Objective questions Physical education

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 1. The laws of ……… are concerned with internal and external forces acting on human body.  (a) Gravitation  (b) Motion  (c) Momentum  (d) Energy Ans : (b) Motion 2. Which of the following is not a type of movement related to physical activity? (a) Extension  (b) Contraction  (c) Abduction  (d) Adduction Ans : (b) Contraction 3. Identify the motion most commonly seen in shoulder and hip joints. (a) Flexion  (b) Rotation  (c) Circumduction  (d) Extension Ans : (c) Circumduction 4. When a player lifts his arm to hit a ball in the game of lawn Tennis, then it is which movement? (a) Extension  (b) Flexion  (c) Rotation  (d) Abduction Ans : (d) Abduction 5. Biomechanics as used in sports is considered to be a branch of which of these? (a) Physics  (b) Kinesiology  (c) Physiology  (d) Anatomy Ans : (b) Kinesiology 6. In the given image, identify the movement. (a) Abduction  (b) Flexion  (c) Addu...
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