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Chemistry

Chemistry
An alloy used in making heating elements for electric heating device is

Nichrome
German Silver
Solder
Alloy Steel

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Chemistry
Urea is a

Sodium fertilizer
Potassium fertilizer
Nitrogenous fertilizer
Phosphatic fertilizer

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Chemistry
Which of the following is used in dating archaeological findings ?

614C
92235U
13H
818O

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Chemistry
Which among the following is found in chlorophyll ?

Mg2+
Ca2+
Fe2+
A l3+

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Chemistry
Iron is extracted from

Haematite
Dolomite
Bauxite
Cinnabar

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Chemistry
Number of hydrogen atoms in a Glucose molecule

12
6
14
8

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