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The correct answer is B
Which of the following gas is used to fill balloons.
Which substance is used to dissolve noble metals?
The Element/Ion which is essential in small quantities for the development of healthy teeth but causes mottling of the teeth if consumed in higher quant...
What are antibiotics?
The pH value of an acidic solution is:
What is the chemical name of quick lime?
Which of the following elements is not a component of stainless steel?
How many periods are there in the Modern Periodic Table?
Identify the element with the electronic configuration of 2, 8, 7.
Whitening of hair is caused by the deficiency of _________?