MSBTE 1st Yr Polytechnic MCQ for Practice
Basic Science (Chemestry)(22102)
Unit 1st
1.The outer most orbit of an atom of element it removed, then the remainder called as
2.The accomplishment of eight electrons in outermost shell of the atom is
3.By loss and gain of valency electrons, can atom of element forms________bond.
4.The_______is formed by mutual sharing of electrons
5.When electron pair is donated by only one atom,__________bond is formed
6.In Calcium chloride molecule________linkage is formed.
7.____________bond present in Ammonium ion or sulphur dioxide.
8.__________Bond is formed by sharing of three pairs of electrons.
9.The charge on ions depends on number of loss and gain of_______
10.The Co-ordinate bond is formed when one atom with a lone pair of electrons combines with
11.In magnesium oxide molecule one atom of oxygen combines with______magnesium atom.
12.________Bond is formed by sharing of one pair of electrons.
13.The electronic configuration after bond formation is of______
14.The noble gases such as helium, neon are______
15.______show tendency to lose the electrons.
16.______accept (or gain) the electrons to complete octet.
17.The molecule of oxygen has______atoms.
18.Nitrogen molecule is formed by mutual sharing of_______pairs of electrons
19.The chlorine gas molecule is_______
20.Sodium combines with chlorine by_______
21.The two atoms of hydrogen combines with one atom of oxygen to form its_______compound.
22.Metals have good conductivity due to___-
23.Ionic compounds (like NACL) are soluble in_____
24.Covalent compounda are insoluble in_____
25.Compounds formed by sonic bond are_____
26.When oevalent compound, are dissolved In solvent, they do not produce_______
27.All properties of compounds depend on_______
28.When the bond formed between atoms of element,they achieve_______
29.Regular arrangement in which atoms are closely packed is known as_______
30.Covalent compounds are______
31.The gain of electron (e-) forms
32.Ionic bond is also known as
32.Ionic bond is also known as
33.Dative bond is another name of_______
34.A chemical bond is formed when____
35.When positive end of one molecule is attracted weakly to negative end of another molecule then force between known as ____
36.Metal atom loses valence electrons to form ____
37.Non-metal atoms gain electrons to form ____
38.Sodium metal has the______crystal lattice.
