Which of the following does not contain phosphorus ?
Which of the following does not contain phosphorus ?
A. Yolk of egg
B. Bone
C. Nerves
D. Steel
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Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?
Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?A. aluminium can be recycled
B. aluminium has very low density
C. aluminium is the most abundant metal in the earth crust
D. aluminium is resistant to corrosion by organic acids.Which group contains elements that exist as monoatomic molecule?
Which group contains elements that exist as monoatomic molecule?A. 1
B. 2
C. 14
D. 18One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of________________?
One mole of an ideal gas at 546.5 K under 2 atm pressure has a volume of________________?A. 22.414 m3
B. 44.828 dm3
C. 22.414 dm3
D. 11.212 cm3Shielding effect across the period_________________?
Shielding effect across the period_________________?A. Increases
B. Decreases
C. Can not be predicted
D. Remains constantThe unit of the rate constant (k) is same as that of rate of reaction________________?
The unit of the rate constant (k) is same as that of rate of reaction________________?A. First order reaction
B. Second order reaction
C. Zero order reaction
D. Third order reactionParke’s process is used in the extraction of________?
Parke’s process is used in the extraction of________?A. Iron
B. Sodium
C. Silver
D. Zinc