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Recent questions tagged p-block-elements

Which of the following statements regarding sulphuric acid is not true ?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements regarding sulphur trioxide is not true ?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements regarding sulphur dioxide is not true ?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements regarding sulphur is not true?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following is not the mineral of sulphur?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following is not true about $H_2O_2$?

asked Jul 24, 2014 by sreemathi.v

1 answer

Pyrosulphuric acid may be synthesized by dissolving $SO_3$ in

asked Jul 24, 2014 by sreemathi.v

1 answer

Of the following acids,the strongest is

asked Jul 24, 2014 by sreemathi.v

1 answer

When pure $H_2SO_4$ is electrolysed,the product at the anode is

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following oxo-acids of sulphur has more than one oxidation state of sulphur?

asked Jul 24, 2014 by sreemathi.v

1 answer

The oxidation state of sulphur in peroxodisulphuric acid,$H_2SO_{6+}$,is

asked Jul 24, 2014 by sreemathi.v

1 answer

The oxidation state of sulphur in peroxodisulphuric acid,$H_2S_2O_8$,is

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the acids does not include S-S bond?

asked Jul 24, 2014 by sreemathi.v

1 answer

The structure of $SF_4$ is

asked Jul 23, 2014 by sreemathi.v

1 answer

Sulphur trioxide exists

asked Jul 23, 2014 by sreemathi.v

1 answer

Which of the following compounds undergoes hydrolysis?

asked Jul 23, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 23, 2014 by sreemathi.v

1 answer

Which of the following hydrides of Group 16 has the lowest boiling point?

asked Jul 23, 2014 by sreemathi.v

1 answer

Which of the following triatomic molecules does not exist?

asked Jul 23, 2014 by sreemathi.v

1 answer

Atomic number of tellurium which belongs to 5th period is

asked Jul 23, 2014 by sreemathi.v

1 answer

Which of the following elements does not belongs to Group 16?

asked Jul 23, 2014 by sreemathi.v

1 answer

Which of the following is true about the reaction of Copper and Nitric Acid?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which of the following reasons best describe why Nitrogen is anomalous in its behaviour compared to other elements of its group?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Arrange the hydrides of the p-Block Group 15 elements in order of increasing boiling point:

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Arrange the hydrides of the p-Block Group 15 elements in order of bond angle:

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which of the following about Phosphorus is incorrect?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which of the following is incorrect about Nitrogen?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which is the only member of Group-15 p-block elements that does not exhibit allotropy?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which of the following represents the decreasing order of the basicity of the hydrides of Group-15 p-block elements?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which of the following regarding the stability of Phosphorus is correct?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which of the following is not true about Phosphine?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

White phosphorus on reaction with $\text{NaOH}$ gives $\text{PH}_3$ as one of the products. What type of a reaction is this?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Between $\text{NH}_3$ and $\text{PH}_3$, which is a better electron donor and why?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Choose the correct statement:

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Given the following Assertion and Reason, choose the correct answer:

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Which are the following statements are correct about White Phosphorus ($\text{P}_4$)?

asked Jul 14, 2014 by balaji.thirumalai

1 answer

Why is it that in the case of nitrogen $\text{NCl}_3$ is possible, but not $\text{NCl}_5$, while in the case of phosphorus, $\text{PCl}_3$ and $\text{PCl}_5$ are possible.

asked Jul 14, 2014 by balaji.thirumalai

1 answer

The common characteristic in all oxides and oxyacids of nitrogen is:

asked Mar 16, 2014 by balaji.thirumalai

1 answer

Which of the following statements are NOT correct?

asked Mar 16, 2014 by balaji.thirumalai

1 answer

Which of the following statements regarding Halogens is NOT correct?

asked Mar 16, 2014 by balaji.thirumalai

1 answer

Which of the following statements is NOT correct?

asked Mar 16, 2014 by balaji.thirumalai

1 answer

In Castner's process of attraction of sodium cathode is

asked Jan 17, 2014 by sreemathi.v

1 answer

Which of the following reacts with $BCl_3$ to form diborane

asked Jan 17, 2014 by sreemathi.v

1 answer

Ostwald's process is a chemical process for making nitric acid $\text{HNO}_3$ by which of the following methods:

asked Jan 17, 2014 by sreemathi.v

1 answer

Aqueous solution of carnalite gives positive test for

asked Jan 17, 2014 by sreemathi.v

1 answer

Silica is eliminated during the process as:

asked Nov 29, 2013 by sreemathi.v

1 answer

$\Rightarrow A\overset{HBr}{\rightarrow}C_2H_5Br\overset{B}{\rightarrow}A$.B is

asked Nov 29, 2013 by sreemathi.v

1 answer

$\Rightarrow A\overset{HBr}{\rightarrow}C_2H_5Br\overset{B}{\rightarrow}A$.A is

asked Nov 29, 2013 by sreemathi.v

1 answer

Flurosis disease is caused due to the reaction of __________with excess of fluride in the body

asked Nov 29, 2013 by sreemathi.v

1 answer

In the ground state an element has 13 electrons in M shell.The element is

asked Nov 29, 2013 by sreemathi.v

1 answer

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