Chemistry Question Bank

A commercial sample of H2O2 marked as 100 volume hydrogen peroxide, it means that (Manipal 2014)

30 volume hydrogen peroxide means (UK PMT 2014)

In which of the following reactions, H2O2 acts as a reducing agent? (EAMCET 2014) (a) H HOCl H O H O Cl O -> (b) OH Mn H O Mn 2OH -> (c) OH 2Fe H O 2Fe 2OH -> (d) H PbS s 4H O aq PbSO s 4H O l ->

Strength of H2O2 is 15.18 gL–1, then it is equal to (KCET 2014)

The laboratory method for the preparation of H2O2 is by (UP CPMT 2014)

The moderator used in nuclear reactor is (UP CPMT 2014)

Which of the following statements about hydrogen is incorrect? (NEET 2016)

The method used to remove temporary hardness of water is (NEET 2019)

The number of hydrogen bonded water molecule(s) associated with CuSO4.5H2O is (Odisha NEET 2019)

Match the following and identify the correct option. (NEET 2020) Column I Column II

Tritium, a radioactive isotope of hydrogen, emits which of the following particles? (NEET 2021)

The number of chain isomers of C5H12 are

Structural isomers which differ in chain of carbon atoms are known as

Butane (C4H10) has ...A... chain isomers. Here, A refers to

X is heated with soda lime and gives ethane. X is

Which of the following compounds can be best prepared by Wurtz-reaction?

X is heated with soda-lime and gives propane, X is

An alkyl halide X reacts with sodium to form 3,8- dimethyldecane. What is X? (a) (b) (c) (d)

1-bromo-3-chlorocyclobutane when treated with two equivalents of Na, in the presence of ether which of the following will be formed? (a) (b) (c) (d)

The compound with highest boiling point is

Which of the following has the lowest boiling point ?

The highest boiling point is expected for

When cyclohexane is poured on water, it floats, because

When a mixture of methane and oxygen is passed through heated molybdenum oxide, the main product formed is

On mixing alkane with chlorine and irradiating with ultraviolet light, it forms only one monochloroalkane. The alkane is