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i) Ethyl CHLORIDE reacts with alc.KOH to yeild ETHENE which on hydrogenation with Nickel GIVES ethane.Ethyl−chlorideCH3CH2ClalcKOH−HClEtheneCH2=CH2H2/NiEthaneCH3−CH3ii) Ethyl chloride can be CONVERTED to n−butane by wurtz reaction.2CH3CH2Cl+2Naanhydrousethern−butaneCH3CH2CH2CH3+2NaCl

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_____________________________________________________________________________________________________________________________________________________________________________________________________ ______________________________________________________________________________________________________NOTE:- The value of log & ANTI log of a number can be FOUND out USING the longarithm and anti-longarithm tables.__________________________________

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nch of science concerned with the substances of which matter is COMPOSED, the INVESTIGATION of their properties and REACTIONS, and the use of such reactions to form NEW substances.

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Answer:2Y + ( \FRAC{6}{4} - \frac{3}{5} ) = 5y - \frac{4}{8}2y+( 46 − 53 )=5y− 84 2y + \frac{9}{10} = 5y - \frac{4}{8}2y+ 109 =5y− 84 7Y = \frac{14}{10}7y= 1014 y = \frac{1}{5}y= 51 hope it helpsplease Mark as brainliest ❤️

1) Cockroach BELONGS to the phylum Arthropoda and class Insecta. (2) Scientific reasons for placement of Cockroach in the phylum Arthropoda : (a) The body is covered by CHITINOUS exoskeleton. (b) Jointed appendages present, three PAIRS of walking legs and two pairs of MEMBRANOUS wings . (c) Body is eucoelomate, triploblastic, bilaterally segmented and segmented. (d) Respiration by spiracles and tracheal TUBES.

Bohr’s model of the hydrogen atom is based on three postulates: (1) an ELECTRON moves around the NUCLEUS in a circular orbit, (2) an electron’s angular momentum in the orbit is quantized, and (3) the change in an electron’s ENERGY as it makes a quantum jump from one orbit to another is always ACCOMPANIED by the emission or absorption of a photon. Bohr’s model is semi-classical because it combines the classical concept of electron orbit (postulate 1) with the new concept of quantization (postulates 2 and 3).Explanation:

Their are TWO TYPES of water hardness: temporary and PERMANENT hardness. ... As you can se boiling the water causes the precipitation of solid calcium carbonate or solid MAGNESIUM carbonate. This removes the calcium ions or magnesium ions from the water, and so removes the hardness.

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nch of science concerned with the substances of which MATTER is COMPOSED, the INVESTIGATION of their properties and reactions, and the use of such reactions to form new substances.

tion:Drinking lemon juice (usually diluted in a glass of water or added to a CUP of tea) is a beloved health tonic among fans of natural medicine. Potential benefits include lower cholesterol, lower inflammation in the body, and increased metabolism and energy. Lemon also contains HIGH levels of antioxidants and vitamin C that boost your immune system.On a scale from 0-14, a pH of 7 is neutral (pure water) while numbers below 7 are acidic (unhealthy), and above 7 are basic or alkaline (healthy). BELIEVERS in holistic health blame many ailments on the body’s pH being too LOW or too acidic. Increasing your body’s pH is called

the super oxides species is REPRESENTED as O2- , since the compound is neutral, THEREFORE, the OXIDATION state of potassium is +1.

nch of science CONCERNED with the substances of which matter is COMPOSED, the INVESTIGATION of their properties and reactions, and the use of such reactions to FORM NEW substances.

your answer... ELECTROCHEMISTRY is the branch of physical chemistry concerned with the relationship between electrical POTENTIAL, as a measurable and quantitative phenomenon, and identifiable chemical change, with EITHER electrical potential as an outcome of a PARTICULAR chemical change, or vice versa. Hope it will be helpful for you. THANKS for reading. Mark as brainliest.

Explanation: Copper ELECTRODE cannot FORM the INNER reference electrode in GLASS electrodes.

because REFRACTION means bending of light it TOUCHES the principal AXIS so the theorem of ANGLE incident = angle of reflection

sodium chloride has higher melting point then naphthalene this is because sodium chloride has ELECTROSTATIC FORCE of ATTRACTION but sodium and chloride ions very STRONG and RESPONSIBLE for highmelting point.

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f the following has a+ve charge ?(i) Proton (ii) NEUTRON (iii) ANION (iv) ELECTRON

The mass of a nucleus made up of many neutrons and PROTONS is less than the masses of its constituent nucleons. This mass deficit when expressed in energy units through the Einstein FORMULA E=mc² is called the BINDING energy of the nucleus.

It is USED as a COMMON SALT or table salt for DOMESTIC PURPOSE.

tion:Colloids are unlike solutions because their dispersed PARTICLES are much larger than those of a solution. The dispersed particles of a colloid cannot be separated by filtration, but they scatter light, a PHENOMENON CALLED the TYNDALL effect .

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The VIVIDH Bharati station of All INDIA Radio Delhi broadcast on a frequency of 1368The Vividh Bharati station of all india Radio, Delhi,broadcasts on a frequency of 1,368kHz (kilo hertz).EXPLANATION:plz mark my answer in brainliest

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Option BEXPLANATION:BOHR could EXPLAIN only the spectrum  single ELECTRON species.Therefore, the ANSWER is A spectrum of an atom or an containing one electron only

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How many atoms of each CONSTITUENT element are present in 50 g of CaCO_(3) ? 50.0 GRAMS of CaCO3=50.0100.0=0.5 gram mol. 0.5 gram mole of CaCO3 CONTAIN oxygen atoms =0.5×3×6.022×1023=9.03×1023 atoms. An element crystallizes in f.c.c. lattice with EDGE length of 400 pm.

The heat (Q) given off by the neutralization reaction is absorbed by the reaction SOLUTION and the CALORIMETER. Both the solution and calorimeter increase in temperature due to the absorbed heat and this increase can be measured with a thermometer. ΔH is negative if heat is evolved and POSITIVE if heat is absorbed.PLEASE MARK ME AS BRAINLIEST IF I HELPED YOU  :-)

A primary metabolite is a kind of metabolite that is directly involved in normal growth, development, and reproduction. ... Conversely, a secondary metabolite is not directly involved in those processes, but usually has an important ecological function (i.e. a relational function)Primary metabolites prominently functions growth, development and reproduction of cell. Primary metabolites perform their function as molecules signaling to trigger defense response. We have highlight the new trends in utilizing primary metabolites for controlling bacterial, viral and FUNGAL pathogens and insects.Some common examples of primary metabolites include: ethanol, LACTIC acid, and certain amino acids. In higher plants such compounds are often concentrated in seeds and vegetative storage organs and are needed for physiological development because of their role in basic cell metabolism.Secondary metabolites are compounds that are not required for the growth or reproduction of an organism but are produced to confer a selective advantage to the organism. For example, they MAY inhibit the growth of organisms with which they compete and, as such, they often inhibit biologically important processes.Secondary metabolites serve: (i) as competitive weapons used against other bacteria, fungi, amoebae, plants, insects, and large ANIMALS; (ii) as metal transporting agents; (III) as agents of symbiosis between microbes and plants, nematodes, insects, and higher animals.Examples of secondary metabolites include antibiotics, pigments and scents. The opposite of secondary metabolites are primary metabolites, which are considered to be essential to the normal growth or development of an organism.

calucate the mass of FERRIC OXIDE that will be obtained by complte OXIDATIONOF 2G of FeExplanation:mark     me    as      brainliest

Chromium atoms have 24 electrons and the SHELL structure is 2.8. The ground state electron configuration of ground state GASEOUS neutral chromium is [AR]. 3d5. 4s1 and the TERM SYMBOL is 7S3.Explanation:Hope this is you

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b) NaExplanation:CORRECT option isb)Na + Isoelectronic SPECIES have the same number of electrons. Mg has ATOMIC number =12 which is its total number of electrons.Mg 2+ =10 electrons Na + contains 10 electrons.Hence, they are isoelectronic species.

electronic configuration of chlorine in k SUB shell having 2 electrons need to be FILLED and in L sub shell 8 electrons to be filled and in M SUBSHELL there will be 7electrons, then its general electronic configuration is 2,8,7.