Which among the following oxides cause the Acid rain ?
Living in the atmosphere of CO is dangerous because it:
Zone refining is used for the purification of:
Which of the following statements is true for an ideal-dilute solution?
Sodium stearate is a salt and is used:
Which acid is present in lemon ?
The most malleable metal is :
Polyunsaturated fats have ____________.
What is extracted from Bauxite ?
Fluorobenzene (C6H5F) can be synthesized in the laboratory:
The main active constituent of tea and coffee is:
Acid rain is due to air pollution by ?
Identify the thermosetting plastic from the given options:
The half-life of radioactive radon is 3.8 days. The time at the end of which 1/20th of radon sample will remain undecayed is (given log 10e = 0.4343):
How many EDTA (ethylenediaminetetraacetic acid) molecules are required to make an octahedral complex with a Ca2+ ion?
Which one among the following statements regarding the properties of mixtures and compounds is not correct?
Which among the following happens in an oxidation reaction ?
Horizontal rows in the periodic table are called ___________.
Alloys made with mercury as one metal are called ?
Who is credited with the invention of the modern periodic table?
Which of the following is an alkaline earth metal?
You can't live without iron. Where in the body is most of the iron located?
The lowest energy level fills with ____________ first.
The Pauling electronegativities of fluorine and chlorine are 4.0 and 3.0 respectively. Estimate the dipole moment of chlorine monofluoride, ClF.
What is the hardest form of carbon ?
Which of the five isomeric hexanes, the isomer which can give two monochlorinated compounds?
Which is also called Stranger Gas ?
Who is regarded as father of modern chemistry ?
Which of the following cannot be emitted by radioactive substances during their decay ?
The ionic mobility of alkali metal ions in aqueous solution is maximum for: