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As compared to covalent compounds, electrovalent compounds generally have:
(1) Low melting points and low boiling points
(2) Low melting points and high boiling points
(3) High melting points and low boiling points
(4) High melting points and high boiling points
Ans: High melting points and high boiling points
Uses of Alkenes (i) Alkenes are used for the manufacture of polythene - a plastic material; (ii) Alkenes are used for artificial ripening of fruits; (iii) Alkenes are us
Redox systems in bioinorganic chemistry
There energy becomes lesser due to completely filled orbitals.
Vapour pressure of water at 293 k is 17.535mmHg calculate the vapour pressure of water at 293 k when 25g of glucose is dissolved in 450 g of water?
The series limit for Balmer series of H-spectra is: (1) 3800 (2) 4200 (3) 3646 (4) 4000 Ans: 3646
Although CO is well known, SiO does not exist under ordinary conditions. Why is that?
In the cases that we carried out in lectures we assumed that, in scaling up: If the TIP Speed was constant then (Note: Because D a and D t are constructed at a fixed ratio we
0.47 moles of Sodium were reacted with 26g of Copper(II) Nitrate? If the actual yield of copper metal was 1.43g, what is the percentage yield of this reaction? 2. What is the equiv
In polar covalent molecule, one atom gets positive charge and the other one takes negative charge as known as dipole.
what can be understood from the law of multiple proportions?
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