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Q. What is scientific law and theory?
A theory is a description that has been supported by many experiments. Theories declare broad principles of nature. Even though theories are the best explanations of phenomena that scientists have at any given time they are always subject to new experimental data and are modified to include new data.
A scientific law explains a relationship in nature that is supported by many experiments and for which no exception has been found. Scientists may perhaps use models and theories to explain why this relationship exists.
Synthesis of di and tri substituted benzenes
Break point chlorination: It may be defined as the chlorination of water to such an extent that not only living organism but also other organic impurities in water are destroyed.
Q. Write short notes on fabrication of rubber objects. Sol. Fabrication of Rubber: in the row condition rubber is composed of molecules of great length and molecular weight.
Q. What is a trained sensory panel? A sensory panel is the panel of members of which are capable of giving high reliability of judgements, independent of psychological factors
The number of unpaired electrons in a chromic ion Cr 3+ (atomic number = 24) is: (1) 6 (2) 4 (3) 3 (4) 1 Ans: 3
Methods of showing concentrations of solutions The concentration of a solution can be provided in various ways. (A) Percent by mass (B) Molarity (C) molality (D) Mo
Which one is least ionic in the following compounds: (1) Agcl (2) Kcl (3) Bacl 2 (4) Cacl 2 Ans: Agcl
what is mean of biamperometric titration
complete reaction
thermodynamics help to be a good chemist
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