Low silicon, oxygen and High iron, magnesium are the characteristics ____of magma...? Mcqs

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Low silicon, oxygen and High iron, magnesium are the characteristics ____of magma...?

(i) Mafic and Felsic
(ii) Felsic and Rhyoltic

(iii) Mafic and Basaltic
(iv) None of these

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The gases used in different types of welding would include:...?

(i) Oxygen and hydrogen
(ii) Oxygen, hydrogen, acetylene and nitrogen

(iii) Oxygen, acetylene and argon
(iv) Oxygen and acetylene

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Which Muslim scientist is considered to be the founder of chemistry___...?

(i) Jabir bin Hayan
(ii) Al Beroni

(iii) Yaqoob Alkandi
(iv) None

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The element required for solar energy conversion is:...?

(i) Silicon
(ii) Germanium

(iii) Uranium
(iv) None of these

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Which is the hardest among following...?

(i) Radium
(ii) Diamond

(iii) Graphite
(iv) Gold

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What is the first element in the periodic table?...?

(i) Hydrogen
(ii) Helium

(iii) Nitrogen
(iv) Carbon

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splitting of water into hydrogen and oxygen is an example of ______...?

(i) Evaporation
(ii) Condensation

(iii) Decomposition
(iv) Sublimation

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A matter can exist in which of the following forms...?

(i) Liquid
(ii) Solid

(iii) Gas
(iv) All of these

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What is called laughing gas...?

(i) Nitrous Oxide
(ii) Nitric Oxide

(iii) Nitrogen Oxide
(iv) Nitrogen Peroxide

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Vaccination was discovered by...?

(i) Galileo
(ii) Edward Jenner

(iii) Baird
(iv) Roentgen

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