Seven persons J, K, L, M, N, O, and P have different heights. H is taller than M. K is taller than J, who is just shorter than M. O is shorter than P. Only O and P are shorter than N .Who is the tallest person among them?
K/H H/K M J N P O
Which alloy is formed by mixing iron with carbon, nickel, and zinc?
Which of the following elements has the highest electronegativity.
Which sodium compound is the most popular additive in sauces, salad dressings, and beverages for its preservative action?
Whitening of hair is caused by the deficiency of _________?
The Biuret test is used to detect the presence of which substance?
As an air bubble rises from the bottom of a lake to the surface, it will:
Sylvine is a mineral ore of which element?
What is the pH value of pure water ?
What is the process called that forms a protective oxide layer on aluminum?
An atom has 7 electrons in its M-shell and contains 18 neutrons in its nucleus. What is its mass number?
