Download the of class 12 Maths, Physics and other subjects prepared on the basis of latest. As a result, the important neurotransmitter is slowly metabolised and then it can activate its receptor for longer periods of time. Therefore, in order to make learning an enjoyable and effective experience, try to create an affinity towards the subject. Read on to find out. Band theory of metals, conductors, semiconductors and insulators and n and p type semiconductors. These tips help you memorize concepts more easily and efficiently. Such detergents have highly-branched hydrocarbon chains.
The reaction with a higher value of takes place at the cathode. This is the reason why soaps do not work in hard water. Answer The macromolecules chosen as drug targets are carbohydrates, lipids, proteins, and nucleic acids. Referring to these solutions would help the student understand their mistake and make them cautious not to repeat it again. Chemicals in food - preservatives, artificial sweetening agents, elementary idea of antioxidants. Presence of chelate rings: Chelation increases the stability of complexes. Antacids and anti-allergic drugs work on different receptors.
Cimetidine and rantidine are better antacids as they control the root cause of acidity. These drugs prevent the interaction of histamine with the receptors present in the stomach walls. It can be used for the treatment of typhoid, dysentery, acute fever, pneumonia, meningitis, and certain forms of urinary infections. After completing the chapter, for the preparation of session 2016 — 2017 exam, you are suggested to do the three tests of Level 1, Level 2 and Level 3 and discuss it with your classmates and school teacher for answers. Answer Antiseptics and disinfectants are effective against micro-organisms. Schottky, Frenkel and interstitial defects are stoichiometric defects.
These solutions are prepared by our subject experts to help the students to understand the basic concepts of chemistry. Out of these 16 chapters the students are advised to focus more on chapters like, Solid State, Solutions, Electrochemistry, Redox reactions, Chemical Kinetics, Surface Chemistry, P Block Elements, Group 15, 16,17 and 18 Elements, d and f Block Elements, Coordination Compounds, Alcohols, Phenols, Ethers, Carboxylic Acids, and Polymers. Two other broad spectrum antibiotics are vancomycin and ofloxacin. Answer Either of the following forces can be involved in holding drugs to the active sites of enzymes. Answer Soaps get precipitated in hard water, but not in soft water.
Haloarenes: Nature of C—X bond, substitution reactions Directive influence of halogen in monosubstituted compounds only. Many discoveries were made by scientists — Hydrogen by Cavendish, Chlorine by Scheele and Carbon dioxide by Black. From this solution, gold is later extracted by the addition of zinc metal. This is a crucial aspect. The reaction at the anode is given by, Electrons released at the anodic spot move through the metallic object and go to another spot of the object. Hormones - Elementary idea excluding structure.
Answer: The galvanic cell in which the given reaction takes place is depicted as: i Zn electrode anode is negatively charged. We have been protected against the diseases like cholera, malaria and T. Rubber industry, metal and alloy industry, fuel industry, paints and varnish industry, nuclear energy, health and hygiene, etc. Thus providing an insight of the marking scheme to students for a high score. They are obtained by reacting polyethylene glycol and stearic acid. That's why how textbook solutions is very important for studies and for your exam. Therefore, deposition of silver will take place at the cathode.
Thus, this classification is important. Chemicals are used in all the industries like agriculture, animal husbandry, fishery, wood, textile and food industries. Hard water contains calcium and magnesium ions. Answer Soaps work in soft water. Answer The main constituents of dettol are chloroxylenol and α-terpineol. Structural formulae of these compounds are given below.
But for concentrated sulphuric acid, reaction ii occurs. Another useful strategy is to divide the information into chunks. Hence, it is the most useful to medicinal chemists. Since most of the questions asked in these competitive exams are taken directly from the concepts mentioned in these solution modules, therefore, the students must pay great attention to all the above-mentioned solutions for securing a meritorious position in the exam. At anode: Since Pt electrodes are inert, the anode is not attacked by ions. Answer Artificial sweetening agents such as saccharin, alitame, and aspartame can be used in preparing sweets for diabetic patients. Give one example of each.
These solutions must be focused properly for a deeper understanding of chapters included in the class 12 textbooks. Answer n-octane is a non-polar solvent. Answer Artificial sweetening agents are chemicals that sweeten food. Then, the emf of the cell is measured and this measured emf is the standard electrode potential of the magnesium electrode. This is because the number of ions per unit volume that carry the current in a solution decreases with a decrease in concentration.