Recent questions tagged p-block-elements

Which of the following statements is not correct?

asked Jul 28, 2014 by sreemathi.v

1 answer

The strength of halogen acids in water follows the order

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following reactions is quite violent in nature?

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the halogen is most abundant in the earth's crust?

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following does not contain fluorine?

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following orders of melting point of hydrides of halogens is correct?

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following statements regarding aluminium is not correct ?

asked Jul 28, 2014 by thanvigandhi_1

1 answer

Which of the following halogens does not exhibit positive oxidation state?

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following is the only noble gas not to occur in the free state in the atomosphere, air, in oute space or in natural gases etc.

asked Jul 28, 2014 by balaji.thirumalai

1 answer

Which of the following orders of bond dissociation enthalpy of halogens is correct?

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following mixtures is used by divers in their breathing apparatus for respiration purposes?

asked Jul 28, 2014 by balaji.thirumalai

1 answer

Which of the following statements about the atomic and physical properties of noble-gases are incorrect?

asked Jul 28, 2014 by balaji.thirumalai

1 answer

Which of the following orders of electron affinities of halogen is correct?

asked Jul 28, 2014 by sreemathi.v

1 answer

Arrange the noble gases in order of increasing Atomic Mass.

asked Jul 28, 2014 by balaji.thirumalai

1 answer

Which of the following is radioactive halogen?

asked Jul 28, 2014 by sreemathi.v

1 answer

What is the Poisson's ratio for the noble gases?

asked Jul 28, 2014 by balaji.thirumalai

1 answer

The atomic number of astatine which belongs to six period is

asked Jul 28, 2014 by sreemathi.v

1 answer

Which of the following statements about the properties of Helium is incorrect?

asked Jul 28, 2014 by balaji.thirumalai

1 answer

The number of halogens known as so far is

asked Jul 28, 2014 by sreemathi.v

1 answer

When XeF$_4$ reacts with water, which of the following are possible product(s) that can be formed? Xe, HF, XeO$_3$, XeOF$_3$, XeO$_4$, O$_3$.

asked Jul 27, 2014 by balaji.thirumalai

1 answer

Match the following:

asked Jul 27, 2014 by balaji.thirumalai

1 answer

Xe$_4$ and Xe$_6$ are expected to be:

asked Jul 27, 2014 by balaji.thirumalai

1 answer

The structure of XeO$_3$ is

asked Jul 27, 2014 by balaji.thirumalai

1 answer

Why is argon used in arc welding?

asked Jul 27, 2014 by balaji.thirumalai

1 answer

Which of the following regarding Helium is incorrect?

asked Jul 27, 2014 by balaji.thirumalai

1 answer

The number of water of crystallization in Borax is

asked Jul 27, 2014 by thanvigandhi_1

1 answer

In Borax, the number of -OH group attached to boron atoms is

asked Jul 27, 2014 by thanvigandhi_1

1 answer

In the reaction $H_3BO_3$$ _{\overrightarrow{375k}} A$$ _{\overrightarrow{475k}} B$$ _{\overrightarrow{red\: heat}} C$ The compounds A, B and C respectively are

asked Jul 27, 2014 by thanvigandhi_1

1 answer

Borax has the molecular formula

asked Jul 27, 2014 by thanvigandhi_1

1 answer

Which of the following statement is correct ?

asked Jul 27, 2014 by thanvigandhi_1

1 answer

Which of the following statement is not correct ?

asked Jul 27, 2014 by thanvigandhi_1

1 answer

Which of the following statement is incorrect ?

asked Jul 27, 2014 by thanvigandhi_1

1 answer

Heating of diborane with excess of ammonia to a high temperature yields

asked Jul 27, 2014 by thanvigandhi_1

1 answer

Chrome alum is

asked Jul 26, 2014 by thanvigandhi_1

1 answer

Heating of $Al_2(SO_4)_3$ gives

asked Jul 26, 2014 by thanvigandhi_1

1 answer

Which of the following alloys does not contain aluminium ?

asked Jul 26, 2014 by thanvigandhi_1

1 answer

Which of the following statements regarding the structure aluminium chloride is correct ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

The chief ore for the extraction of aluminium is

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following minerals does not contain aluminium ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following is metaboric acid ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following is boric acid ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following statements regarding Boron is not correct ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following statements regarding boron is not correct ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

The treatment of $Mg_3B_2$ with acids produces

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following facts regarding boron and silicon is not true ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

Which of the following equations is not correctly formulated ?

asked Jul 25, 2014 by thanvigandhi_1

1 answer

The oxidation state of Sc in $Sc_2Si_2O_7$ is

asked Jul 25, 2014 by sreemathi.v

1 answer

The charge $x$ of $Si_6O_{18}^x$ will be

asked Jul 25, 2014 by sreemathi.v

1 answer

Which one of the following is a covalent carbide?

asked Jul 25, 2014 by sreemathi.v

1 answer

Each silicon atom in the trimer cyclic silicate has

asked Jul 25, 2014 by sreemathi.v

1 answer

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