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Elements A and B with their respective electronic configurations 3d10 4s1 and 4d10 5s1 in their outermost shell, are (a) Both non-metals (b) Both coinage metals (c) A is a non-metal
10
Nov
Elements A and B with their respective electronic configurations 3d10 4s1 and 4d10 5s1 in their outermost shell, are (a) Both non-metals (b) Both coinage metals (c) A is a non-metal are (a) Both non-metals (b) Both coinage metals (c) A is a non-metal Elements A and B with their respective electronic configurations 3d10 4s1 [...]
A hemispherical network of radius a is made by using a conducting wire of resistance per unit length r. Find the equivalent resistance across OP.
10
Nov
A hemispherical network of radius a is made by using a conducting wire of resistance per unit length r. Find the equivalent resistance across OP. A hemispherical network of radius a is made by using a conducting wire of resistance per unit length r. Find the equivalent resistance across OP. November 10, 2020 Category: Uncategorised [...]
3 and 6 electrons are present in the outermost orbit of A and B respectively. The chemical formula of its compound will be
10
Nov
3 and 6 electrons are present in the outermost orbit of A and B respectively. The chemical formula of its compound will be 3 and 6 electrons are present in the outermost orbit of A and B respectively. The chemical formula of its compound will be November 10, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
The stable bivalency of Pb and trivalency of Bi is (a) Due to d contraction in Pb and Bi is (b) Due to relativistic contraction of the 6 s orbitals of Pb and Bi, leading to inert pair effect
10
Nov
The stable bivalency of Pb and trivalency of Bi is (a) Due to d contraction in Pb and Bi is (b) Due to relativistic contraction of the 6 s orbitals of Pb and Bi, leading to inert pair effect leading to inert pair effect The stable bivalency of Pb and trivalency of Bi is (a) [...]
In a periodic table the basic character of oxides (a) Increases form left to right and decreases from top to bottom (b) Decreases from right to left and increases from top to bottom
10
Nov
In a periodic table the basic character of oxides (a) Increases form left to right and decreases from top to bottom (b) Decreases from right to left and increases from top to bottom In a periodic table the basic character of oxides (a) Increases form left to right and decreases from top to bottom (b) [...]
Fluorine, chlorine, bromine and iodine are placed in the same group (17) of the periodic table, because (a) They are non-metals (b) They are electronegative
10
Nov
Fluorine, chlorine, bromine and iodine are placed in the same group (17) of the periodic table, because (a) They are non-metals (b) They are electronegative because (a) They are non-metals (b) They are electronegative bromine and iodine are placed in the same group (17) of the periodic table chlorine Fluorine November 10, 2020 Category: Uncategorised [...]
Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in (a) Forming covalent halides (b) Forming polymeric hydrides
10
Nov
Beryllium and aluminium exhibit many properties which are similar. But, the two elements differ in (a) Forming covalent halides (b) Forming polymeric hydrides Beryllium and aluminium exhibit many properties which are similar. But the two elements differ in (a) Forming covalent halides (b) Forming polymeric hydrides November 10, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
The basis of keeping the elements in the group of a periodic table is (a) Ionisation potential (b) Electronegativity (c) Electron affinity (d) Number of electrons in the valence shell
10
Nov
The basis of keeping the elements in the group of a periodic table is (a) Ionisation potential (b) Electronegativity (c) Electron affinity (d) Number of electrons in the valence shell The basis of keeping the elements in the group of a periodic table is (a) Ionisation potential (b) Electronegativity (c) Electron affinity (d) Number of [...]
Which of the following elements is found in native state (a) Al (b) Au (c) Cu (d) Na
10
Nov
Which of the following elements is found in native state (a) Al (b) Au (c) Cu (d) Na Which of the following elements is found in native state (a) Al (b) Au (c) Cu (d) Na November 10, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Each resistance in the circuit ( figure ) is of 2000 ohm. The combination is put across a supply of 200 V . Find the reading of ammeter .
10
Nov
Each resistance in the circuit ( figure ) is of 2000 ohm. The combination is put across a supply of 200 V . Find the reading of ammeter . Each resistance in the circuit ( figure ) is of 2000 ohm. The combination is put across a supply of 200 V . Find the reading [...]