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An electron has principal quantum number 3. The number of its (i) sub-shells and (ii) orbitals would be respectively:
(1) 3 and 5
(2) 3 and 7
(3) 3 and 9
(4) 2 and 5
Ans :3 and 9
How lots of significant figures are in the following measurements? a. 0.002 849 kg b. 40 030 kg Imply rules 1-4 from above. Verify your answers by writing the quantit
RL, a 28-year old first time father, was watching his 4-month old baby for the weekend while his wife was away at a sales meeting. Things were going well. He had run out of breast-
0.205g of a metal on treatment with dilute acid gave 106.6ml of hydrogen collected over water at 755mm pressure and 17 degree Celsius. calculate the equivalent mass of the metal. (
h2c2o4 + mno-4 - mno-4 +co2
In the following reactions , identify each lettered (A,B,C,D,E,F)product.
Hookes Law simulation Using a horizontal and a vertical spring that this applet simulates Hooke's law and easy harmonic motion. As discussed previously, the amount of stretchin
Simple proteins Simple proteins are made up of chains of amino acid units just joined by peptide linkages. These types of proteins on hydrolysis yield just only mixture of amin
The number of electrons in c l - ion is: (1) 19 (2) 20 (3) 18 (4) 35 Ans: 18
how can we identify the ammonical smell and punjent smell?
Explain the steps involved in the preparation of either potassium dichromate from sodium chromate or potassium permanganate from manganese dioxide.
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