Recent questions and answers in Chemistry

In an element (X) shows two oxidation states $+2$ and $+3$ and forms an oxide in such a way the ratio of the element showing $+2$ and $+2$ states is $1:3$ in compound the formulae of

answered Jun 20, 2020 by kshitijthareja03

1 answer

Which one of the following statements is not true?

answered May 6, 2020 by ysanjeet116

1 answer

Which of the following has the highest nucleophilicity

answered Feb 29, 2020 by infomadhavi

1 answer

Which of the following compounds will show geometrical isomerism?(i) 2-butene (ii) Propene (iii) 1-phenylpropene (iv) 2-methyl-2-butene

answered Feb 14, 2020 by ashwinipatle221

2 answers

Most stable carbonium ion is

answered Feb 12, 2020 by madridista8907

3 answers

For the reaction :$A+2B\rightarrow C$,5 mole of A and 8 mole of B will produce

answered Nov 15, 2019 by rekhubetu

2 answers

Which of the following is not a condensation polymer?

answered Jul 8, 2019 by shalizasharma99

2 answers

When a gas at high pressure expands into a region of low pressure , then its temperature

answered Apr 17, 2019 by amanbiruli10

1 answer

Zone Refing is generally carried out in inert atmosphere

answered Mar 27, 2019 by prachirajpoot07121999

1 answer

If the reaction rate at a given temperature becomes slower. then

answered Mar 3, 2019 by ravindrarubysingh

2 answers

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

answered Jan 27, 2019 by ishujain318

1 answer

Which persentage of sulphur is used in the vulcanisation ofrubber?

answered Jan 4, 2019 by ronrohan557

1 answer

When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are?

answered Oct 22, 2018 by shibunj22

2 answers

Self reduction is possible in which of following :

answered Oct 4, 2018 by meena.p

1 answer

Optical isomerism arises from the presence of

answered Sep 25, 2018 by zakirnasir5781

2 answers

Formation of purple colour on the addition of sodium nitroprusside to sodium carbonate extract indicates the presence of

answered Aug 29, 2018 by akanshwall

2 answers

Which of the following alloys does not contain copper ?

answered Aug 16, 2018 by neha.kes143

2 answers

An ion $Mn^{a+}$ has the magnetic moment equal to 4.9bm. What is the value of a ?

answered Jul 30, 2018 by meena.p

1 answer

An organic compound containing C and it has 92.3% carbon .Its empirical formula is :

answered Jul 28, 2018 by sunita0606berwal

2 answers

Which of the following forms cationic micelles above certain concentration?

answered Apr 25, 2018 by tuttz123

2 answers

In a solid AB having the NaCl structure A atoms occupy the corners of the cubic unit cell . If all the faces centred atoms along one of the axis are removed then the resultant stoichiometry of the solid is

answered Apr 22, 2018 by sagarkh459

2 answers

An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67% . Th empirical formula of the compound would be :

answered Apr 19, 2018 by sharmaaparna1

1 answer

Given the following two statements, which of the following options that follow is TRUE?

answered Apr 9, 2018 by sharmaaparna1

2 answers

The impurities associated with minerals used in metallurgy are called collectively?

answered Feb 26, 2018 by krutideepankar123

2 answers