The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration
Which of the following is an unsaturated Hydrocarbon?
Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?
Saturated carbon compounds can form which types of chain structures?
I. Straight chain
II. Branched chain
An atom can achieve octet by ______.
I. sharing electron
II. gaining electron
III. losing electron
Which substance is produced when alcohol is added with petrol and used as a fuel?
Isotopes have ______.
I. similar physical quantities and different chemical properties
II. different physical properties
III. similar chemical properties
Which of the below options is called a laughing gas?
If the first and third members of a Dobereiner triad are Phosphorous and Antimony, the second member of this triad is
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