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Explain the following observations:
(i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition elements.
(ii) Transition elements and their compounds are generally found to be good catalysts in chemical reactions.
Q. How to Determine Electron Affinity? Ans. Electron affinity is the measure of an atom's tendency to form a negative ion. Electron affinity can be measured by the amou
A mylar novelty balloon is filled with 4.5 L of He at1 atm pressure and 23 degree Celcius temperature. It is then dipped into liquid nitrogen (77K) until the gas and balloon are a
Physical properties of Succinic Acid (a) Succinic Acid is a white crystalline solid. It melts at 188° C (b) Succinic Acid is less soluble in water. It is comparatively more
Q. A sample of water on analysis was found to contain the following analytical data: Mg (HCO 3 ) 3 = 16.8mg/L, MgCl 2 = 19mg/L, Mg (NO 3 ) 2 = 29.6 ppm, CaCO 3 = 20 p
1. Define or explain the following terms: a. Science b. Experimentation c. Scientific method d. Hypothesis e. Theory f. Scientific law g. Chemistry h.
fundamentals of analytical chemistry 8th edition
sir/maam is it animals have the same type of the blood with human beings?
Which of the following is isoelectronic with carbon atom: (1) Na + (2) Al +3 (3) O 2- (4)N + Ans: N +
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An atom with atomic number 20 is most likely to combine chemically with the atom whose atomic number is: (1) 11 (2) 14 (3) 16 (4) 10 An
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