General Science
For Assam Agriculture, PNRD, Assam Police, Assam TET, Forest, DECT, APSC, Railway & SSC Exam (Part-6)
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500 General Science (Part-6)
1➤
(Q) The isotopes of chlorine with mass number 35 and 37 exist in which ratio?
2➤
(Q) A gas is found to have the formula (CO)n. Its vapour density is 70. What must the value of n be?
3➤
(Q) Which law directly explains the law of conservation of mass?
4➤
(Q) To whom the credit for the discovery of transuranic element goes?
5➤
(Q) How many moles are there is 140 g of Si (atomic mass of silicon is 28)?
6➤
(Q) Which substance does not have a melting point?
7➤
(Q) By which a mixture of sand and naphthalene can be separated?
8➤
(Q) Sodium carbonate crystals lose water molecules. What is this property called?
9➤
(Q) By whom was the law of constant proportions enunciated?
10➤
(Q) What is the number of unpaired electrons in carbon atom?
11➤
(Q) In an atom the order of filling up of the orbitals is governed by which principle?
12➤
(Q) Regarding the atom of a chemical element, magnetic quantum number refers?
13➤
(Q) What are the atoms of the elements having same mass number but different atomic number called?
14➤
(Q) Rutherford’s scattering experiment related to the size of which thing?
15➤
(Q) By whom was the absolute value of charge on electron determined?
16➤
(Q) Which property of the elements is a whole number?
17➤
(Q) Discovery of the nucleus of an atom was due to the experiment carried out by which person?
18➤
(Q) What are the atoms of the elements which have same number of neutrons called?
19➤
(Q) Whose experiment proved that the speed of light was always the same?
20➤
(Q) Which element has two electrons in the K-shell only?
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