(ii) The solubility and the nature of oxides of Group 2 elements. View Solution The metallic character of element of group 14 View Solution How does the basic character of oxides of group 2 elements vary on moving down the group ? View Solution ...
Step 2: Understand the Inert Pair Effect- As we move down group 15 (from nitrogen to bismuth), the tendency to form pentahalides decreases due to the inert pair effect. This effect refers to the reluctance of the s-electrons in the outermost shell to participate in bonding. ...
From their isoelectric points, their basic, acidic, or neutral character can be distinguished. Alternatively, we can consider in turn those with aromatic or aliphatic side chains.151 Therefore, based on the properties of their R-groups (polarity and charge) amino acids are grouped into five main...
In situ Raman spectroscopy reaffirmed the favorable HCOOH conversion on Vac, in which the *OCHO character at 1585 cm−1 emerged at a relatively positive potential and presented a prominent peak intensity with respect to Vac-air and Ar-air, accordant with the in situ ATR-SEIRAS results (...
The use of annual or monthly mean values, for example in Table 24.3, conceals large variations in individual rain events. Like sulphate aerosol concentration, sulphate ion deposition has an episodic character. In some remote areas, up to 30% of annual sulphate deposition can come down in one ...
The endothermic character of M-steel corrosion was indicated by the positive Havalues, which implies that it is difficult to dissolve M-steel in the presence ofA. heterophylla. The negative values of Safor both the pure 1 M HCl solution andA. heterophyllasolutions indicated that the activated com...
Results and discussion To understand controlling factors on oxidative removal of Fe from AMD at low pH, we character- ized water chemistry, microbial activities and microbial communities associated with two AMD discharges. Fe(II) has historically been observed to be effectively removed from AMD ...
As the size of the element increases down the group, E-H bond length increases and hence E-H bond dissociation energy decreases. In other words, H-S bond dissociation energy is higher than that of H-Te bond dissociation energy and hence H-S bond breaks less easily than H-Te bond. Ther...
After this duration, the mixture was cooled down in an ice bath in order to stop the reaction. Acetonitrile was added in the reaction medium to precipitate the modified lignin. The resulted solid residue was collected by vacuum filtration, thoroughly washed with acetonitrile to eliminate unreacted ...
Preferred foam trigger-type dispensers for use herein have a cone as impingement zone. The two most important dimensions determining the foam character, size and distribution of pattern are orifice diameter and spinner channel width. The interaction of these two factors also determine amount of flow...