Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane

2 Answers  

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how is electricity converted from the potential energy of water falling from dams?

3 Answers   HLL, KIH, Reliance,

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Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these

1 Answers  

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Which of the following is the basis of modern periodic table? 1 Atomic mass 2 Atomic number 3 Atomic size 4 Atomic volume

1 Answers  

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Which are known as non - luminous irregular nebulae?

0 Answers  

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Which of the following colors in he visible spectrum has maximum range? 1 Violet 2 Indigo 3 Orange 4 Red

1 Answers  

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When an iron nail gets rusted, iron oxide is formed 1 Without any change in the weight of the nail 2 With increase in the weight of the nail 3 With decrease in the weight of the nail 4 None of these

1 Answers  

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Which of the following metals can displace hydrogen from dilute acids? 1 Zinc 2 Gold 3 Copper 4 Silver

1 Answers   Petit Seminaire,

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Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO

1 Answers  

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What would happen had there been no chlorophyll in the green leaves?

1 Answers  

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Why is food necessary for human body ?

2 Answers  

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the place where maximum sunlight is present in december . 1. chennai 2.koimbatur 3.banglore 4. kanyakumari

4 Answers  

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