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What was the answer of Hazrat Asma (R.A

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Which type of reaction occur by the ignition of dynamite and gunpowder?

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Name the property used in strip thermometer?

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Which group of metals are highly reactive?

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Write about dentistry tools in neumatics

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What are the main sources of air pollutants?

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Differentiate between reactants and products?

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Identify the nature of chemical changes in various reactions.

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What is central nervous system?

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Why alkali metals are more reactive than alkaline earth metals?

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Which salt can reduce the acidity in the stomach?

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How rain water becomes acidic?

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What do you know about sulphur dioxide?

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Describe changes in states of matter in a chemical reaction.

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Explain how gases behave under pressure

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Explain hydraulics and hydraulic system by giving examples.

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How nitric acid is used?

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Define molarity?

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Write a brief note on Hindbrain.

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How does the soil become acidic?

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