Most answered questions under tag chemistry

–1 vote

2 answers

Do water and ice weigh the same?

posted Feb 19, 2018 by Azhar Keer

+2 votes

2 answers

Who discovered Aluminum and when?

posted Jan 27, 2017 by anonymous

+2 votes

2 answers

What is the Chemical name of Heavy water?

posted May 17, 2016 by Mukul Chag

+1 vote

2 answers

Which scientist discovered the radioactive element radium?

posted Jun 24, 2015 by Sandeep Otari

+1 vote

1 answer

What element has the symbol "P"?

posted Aug 22, 2023 by Pankaj Deshmukh

+1 vote

1 answer

What are Lithium, Sodium, Potassium, Rubidium and Caesium?

posted Sep 23, 2022 by Saif Khanam

+1 vote

1 answer

What name is given to the group of elements that includes fluorine, chlorine, bromine and iodine?

posted Sep 20, 2022 by Maninder Bath

+1 vote

1 answer

The white fumes that form when hydrogen chloride dissolves in water consist of what?

posted Sep 12, 2022 by Sandeep Otari

+1 vote

1 answer

What is the atomic number of the element which is the basis for all organic chemistry?

posted Aug 9, 2022 by Deepak Chitragar

+1 vote

1 answer

An atom of oxygen linked to an atom of hydrogen is a signature combination in the formulae of which compounds?

posted Jul 1, 2022 by Varuna Magar

+1 vote

1 answer

How many elements are currently formally recognised in the periodic table of elements as having been observed?

posted Sep 15, 2021 by Pankaj Deshmukh

+1 vote

1 answer

What are chlorine, bromine and iodine?

posted Aug 30, 2021 by Kapil Kapoor

+1 vote

1 answer

How many chemical elements currently recognised occur naturally?

posted Aug 9, 2021 by Harshita Dhaliwal

+1 vote

1 answer

When were the last elements formally discovered and added to the periodic table of elements?

posted Jul 1, 2021 by Ujjwal Mehra

+1 vote

1 answer

Elements in the periodic table show two main numbers. What does the number with decimal places represent?

posted Feb 12, 2021 by Simranjeet Singh

+1 vote

1 answer

Which poison is also an element on the periodic table?

posted Feb 10, 2021 by Aman

+1 vote

1 answer

Nitroglycerin is made by treating glycerin with nitric acid and … what?

posted Dec 17, 2019 by Prithvi

0 votes

1 answer

Give the IUPAC name of acetic acid

posted Jun 10, 2019 by Vedharchana Ponnuri

+2 votes

1 answer

Burning methane in the presence of oxygen produces water and what gas?

posted May 29, 2019 by Naveen Kumar

0 votes

1 answer

Define Acidic Anhydrides?

posted Jan 18, 2019 by anonymous

0 votes

1 answer

Calculate the weight of KMnO4 contained in 2 litres of 0.15 M solution

posted Sep 16, 2018 by Kumar Shubham

0 votes

1 answer

Which acid is used in synthetic lemonade?

posted Aug 19, 2018 by Sandy Joe

+1 vote

1 answer

How does the sensitivity of Gumamela (hibiscus) as a pH indicator compare to Litmus paper?

posted Aug 10, 2018 by Ma.liezel Fernandez

+1 vote

1 answer

What is haloalkanes?

posted Jul 29, 2018 by Tanu Kumari

0 votes

1 answer

What is the chemical formula of the Sugar?

posted Jun 26, 2018 by Aman Rajbhar

+1 vote

1 answer

What is the structural formula of ch4

posted Jan 10, 2018 by Sntosh Rastoge

0 votes

1 answer

What is the full name of the compound - CH2ClCH2CHClCHCl2

posted Dec 18, 2017 by anonymous

+1 vote

1 answer

What is the percentage of salt in ocean water?

posted Oct 31, 2017 by Jordan White

+1 vote

1 answer

Which element has the highest and lowest density?

posted Oct 16, 2017 by Jordan White

+1 vote

1 answer

What was the contribution by the Nobel prize winner George A. Olah?

posted Mar 11, 2017 by Pooja

+2 votes

1 answer

Serine, Valine and Glycine are common forms of what acid?

posted Jan 11, 2017 by Reshmi S

+1 vote

1 answer

Who was awarded a Nobel Prize in 1908 for his work on the chemistry of radioactive substances?

posted Nov 28, 2016 by Aarati Mahajan

0 votes

1 answer

For what discovery did Sir Harold Kroto, Robert Curl and Richard Smalley receive the 1996 Nobel Prize in Chemistry?

posted Aug 23, 2016 by Nikhil Pandey

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1 answer

What is (TEL) Tetraethyl Lead and what is its use?

posted May 18, 2016 by Erika

0 votes

1 answer

Zirconium, hafnium and rutherfordium are elements in the same group.............what is the fourth member of this group?

posted Sep 23, 2015 by Nikhil Pandey

0 votes

0 answers

Calculate the mole fraction of benzene in solution containing 30%by mass in carbon tetrachloride

posted Nov 30, 2020 by Çhèlz Krystlé

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0 answers

What is the product name of CH3-CH-CH2-CH3

posted Oct 28, 2020 by Zakria Bukhari

0 votes

0 answers

calculate the ph of a buffer solution that result when 40ml of 0.1M NH3 diluted to 600 ml with deionized water?

posted Sep 27, 2020 by Hawnaz M Mohammad

0 votes

0 answers

chemisty question on molecular formular ,empirical formular ,gas and periodic table

posted Jun 7, 2020 by Brenda Wakoli

0 votes

0 answers

What is the chemical symbol for Manganese?

posted Sep 9, 2019 by Sidharth Malhotra

0 votes

0 answers

The ozone molecule is made up of three atoms of which gas?

posted Sep 6, 2019 by Samardeep Acharya

0 votes

0 answers

String theory question

posted Aug 10, 2019 by Comeback Tuesday

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Pharmaceutical question

posted Jul 12, 2019 by Comeback Tuesday

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osmotic pressure notes

posted Mar 13, 2019 by Sonu Kumar Ray

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Of four balloons filled respectively with ozone, carbon dioxide, oxygen and ammonia, which gas will make balloon float?

posted Jan 22, 2019 by Chahat Sharma

+1 vote

How many isomers are there for C7H7CL [MCQ]

posted Jan 20, 2019 by Subodh Kulkarni

0 votes

0 answers

If a solution of H2O and NaCl is heated what is the result?

posted Dec 31, 2018 by Anuradha Tabyal

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0 answers

What is the ratio of hydrogen atoms to oxygen atoms respectively in a molecule of water?

posted Nov 2, 2018 by Prithvi

0 votes

0 answers

the process of oxidation of palmitic acid

posted Oct 2, 2018 by Jaspreet Singh

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What is the melting point of ice in degree Celsius?

posted Sep 28, 2018 by Nimisha K