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प्रश्न
Name the metal which is a constituent of plant pigment?
उत्तर
The metal which is a constituent of plant pigment is magnesium (Mg).
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संबंधित प्रश्न
Which of the following methods is suitable for preventing an iron frying pan from rusting?
Choose the correct answer from the options given below:
Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as
A. Smelting
B. Ore-dressing
C. Calcination
D. Bessemerisation
Why is an iron grill painted frequently?
Name five methods of preventing rusting of iron.
Brass is an alloy of:
(a) Cu and Sn
(b) Cu and Pb
(c) Pb and Sn
(d) Zn and Cu
Choose the correct alternative and rewrite the following:
Iron is _____________________.
_______ is an alloy made from iron, carbon and chromium.
Which of the following method is used to prevent the accumulation of greenish layer on brass due to corrosion?
Write scientific reason.
Coins are made from metals and alloys.
Explain the chemical reactions in rusting of iron.
