Explore topic-wise InterviewSolutions in Current Affairs.

ANSWER:

Explanation:when we mix quick lime with WATER lime water or ca(OH)2 is produced and heat too

There are three WAYS nitrogen can be fixed to useful for LIVING things: Biologically: nitrogen gas diffuses into the SOIL from the atmosphere and species of bacteria convert this nitrogen to AMMONIUM ions which can be used by PLANTS

Answer:

camphor is (organic compound) a white transparent waxy CRYSTALLINE isoprenoid ketone, with a strong PUNGENT odour, used in pharmacy while NAPHTHALENE is a white crystalline hydrocarbon MANUFACTURED from coal tar; used in mothballs.

Naphthalene Balls are moth free balls, also known as "Kapoor ki goli" and are best suited to protect your clothes and woollens from moth.

question to ACHA H ANSWER dene me THODA sa time lagega

ANSWER:

In chemistry, a racemic mixture, or racemate(/reɪˈsiːmeɪt, rə-, ˈræsɪmeɪt/), is one that has equal amounts of LEFT- and RIGHT-HANDED enantiomers of a chiral molecule. The first known racemic mixture was racemic acid, which Louis Pasteur found to be a mixture of the two enantiomeric isomers of tartaric acid.

Two mirror images of a chiral molecule are called enantiomers or optical isomers. Pairs of enantiomers are often designated as "right-", "left-handed" or, if they have no bias, "ACHIRAL". ... A right handed rotation is dextrorotary (d); that to the left is levorotary (l).

Answer:

EXPLANATION:

The Reaction. When a copper wire is introduced into an AQUEOUS silver NITRATE solution, a single replacement reaction occurs. ... This means that it loses electrons and forms copper ions. These ions REPLACE the silver ions that are present in the aqueous silver nitrate solution to form a NEW compound: copper nitrate

ANSWER:Al+CuCl2=AlCl3+Cu

Explanation:

Answer:

If we BRING MATCHSTICK near the TEST tube, it will burn.

HOPE it HELPS

ANSWER:

Answer:

Given,

Cos A = 5/12

SecA = 12/5

As we KNOW,

The RECIPROCAL of COSA is SecA

HOPE it helps.

Answer:

0° C= 273 K

so 78K = 78+ 273

=351c

and 0 k = -273 °c

ANSWER:

Water Vapour is CORRECT..

MARK as brainliest PLEASE

Answer:

GALVANIC CELL converts chemical energy into electrical energy.Both the electrodes are placed in a same container in the SOLUTION of molten electrolyte. ... Galvanic cells are batteries. The redox reaction in the battery always has a positive VOLTAGE due to different chemical species.

Answer: Acids in which complete dissociation of hydrogen ion takes place are called strong acid. Similarly, bases in which complete dissociation of hydroxide ion takes place are called strong base.

In mineral acids, such as hydrochloric acid, SULPHURIC acid, nitric acid, etc. hydrogen ion dissociates completely and HENCE they are considered as strong acid. Since, in organic acids hydrogen ions do not dissociate completely, so they are weak acid.

Alkalis are water soluble base, thus in alkali; complete dissociation of hydroxide ions takes place and they are considered as strong base.

The complete dissociation of hydrogen ions or hydroxide ions is shown by a single arrow. The incomplete dissociation of hydrogen ions or hydroxide ions is denoted by double arrow.

Example of complete dissociation:

NaOH (aq) ⇨ Na+ + OH−

HCl ⇨ H+ + Cl−

Example of incomplete dissociation:

Mg(OH)2 ⇨ Mg+ + + OH− −

CH3COOH ⇨ CH3COO− + H+

Although acetic acid being an organic acid is a weak acid, but concentrated acetic acid is corrosive and can damage the skin if poured over it.

pH – Measurement of strength of Acid and Base

The strength of acid or base depends upon the hydrogen ion concentration. If the concentration of hydrogen ion is greater than hydroxide ion, the solution is called acidic. If the concentration of hydrogen ion is smaller than the hydroxide ion, the solution is called basic. If the concentration of hydrogen ion is equal to the concentration of hydroxide ion, the solution is called neutral solution.

pH is a scale which quantifies the concentration of hydrogen ion in a solution. The range of pH scale is between 0 to 14.

The pH value decreases with increase in hydrogen ion concentration. If the value of pH is 0, this shows maximum hydrogen ion concentration. pH value equal to 14 shows lowest hydrogen ion concentration. pH value equal to 7 shows the hydrogen ion concentration is equal to hydroxide ion concentration.

A neutral solution, such as distilled water has value of hydrogen ion concentration equal to 7 on pH scale. The acidic solution has value of hydrogen ion concentration less than 7 on pH scale. The basic solution has value of hydrogen ion concentration greater than 7 on pH scale.

In pH scale ‘p’ stands for ‘potenz’. Potenz is a German word which means ‘power’ or ‘potential’. Here; ‘H’ stands for hydrogen ion. Thus, pH means the potential of hydrogen or power of hydrogen.

pH is DEFINED as the decimal logarithm of the reciprocal of the hydrogen ion activity (a(H+ )), in a solution.

ph logarithm formula

ph scale

Indicator:

Substances which show the acidic or basic behavior of other substance by change in colour are KNOWN as indicator.

Type of Indicator: There are many TYPES of indicators. Some common types of indicators are

Natural

Olfactory Indicator

Synthetic Indicator

Universal Indicator

Natural Indicator: Indicators obtained from natural sources are called natural indicators. Litmus, turmeric, red cabbage, China rose, etc. are some common natural indicators used widely to show the acidic or basic character of substances.

Litmus: Litmus is obtained from lichens. The solution of litmus is purple in colour. Litmus paper comes in two colour – blue and red.

An acid turns blue litmus paper red.

A base turns red litmus paper blue.

Turmeric: Turmeric is another natural indicator. Turmeric is yellow in colour. Turmeric solution or paper turns reddish brown with base. Turmeric does not change colour with acid.

Red cabbage: The juice of red cabbage is originally purple in colour. Juice of red cabbage turns reddish with acid and turns greenish with base.

Olfactory Indicators: Substances which change their smell when mixed with acid or base are known as olfactory indicators. For example onion, vanilla, clove, etc.

Onion: Paste or juice of onion loses its smell when added with base. It does not change its smell with acid.

Vanilla: The smell of vanilla vanishes with base, but it’s smell does not vanishes with an acid.

Olfactory indicators are used to ensure the participation of visually impaired students in laboratory.

Synthetic Indicator: Indicators that are synthesized in laboratory are known as synthetic indicators. For example; phenolphthalein, methyl orange, etc.

Phenolphthalein is a colourless liquid. It remains colourless with acid but turns into pink with a base.

Methyl orange is originally orange in colour. It turns into red with acid and turns into yellow with base.

ANSWER:

HEY MATE here is your answer

2 indanone

hope it will HELP you

BUSY for those are a little better but they can also SEE that we will get rid the other two different THINGS like you can also get to WORK at night Rudra of your choice is my CV in this message and delete kar Dena I was

EXPLANATION:

•Citric ACID. A natural PRESERVATIVE, citric acid is FOUND primarily in citrus FRUITS; it provides the sour taste in lemons and limes. ...

•Malic Acid. ...

•Oxalic Acid. ...

•Lactic Acid. ...

•Ascorbic Acid.

Explanation:

The problem is solved differently for different proteins, depending on their physicochemical properties.

The major danger of abrupt changes in urea (or any other denaturing agent you may use) is protein aggregation. As a general case, one expects protein globules to form spontaneously as soon as the denaturant is removed. The TRICK is that often a protein needs more time and a certain path to acquire the native fold, whereas misfolded, inactive species are produced rapidly in a variety of POSSIBLE folding paths. When you decrease urea stepwise you produce a kind of path for PROPER folding, giving the protein both time and the opportunity to go back to correct the fold. When you drop urea sharply AGGREGATES are formed quickly and, most tragedically, irreversibly.

Remark that this situation is not universal! Some proteins (among them rhodanese) are most susceptible to aggregation, for example, at 4M urea. The best WAY to renature a protein is to be found empirically.

Explanation:

The complex matrix (of different concentrations) EFFECT in the ICP-AES determination of sodium, potassium, magnesium and calcium was STUDIED. ... Easily ionised elements (sodium, potassium) were DETERMINED RELIABLY and DIRECTLY without any sample preparation. Sample dilution was not ...

Explanation:

POLYOX™ Water-Soluble Resins are nonionic, high molecular weight water-soluble poly (ethylene oxide) POLYMERS. Though they EXHIBIT properties (binding, thickening, lubricity, ADHESION and emollient performance) like other classes of water-soluble resins, a single POLYOX™ Resin can often CONTRIBUTE several important properties in a single formulation. They can also form association compounds with many other SUBSTANCES to achieve a wide variety of other valuable functions.

Explanation:

A neutrino created with a specific flavor has an associated specific QUANTUM SUPERPOSITION of all three MASS states. As a result, neutrinos oscillate between different flavors in flight. For example, an electron neutrino produced in a beta DECAY reaction may interact in a distant DETECTOR as a muon or tau neutrino.

Answer:

She should wear Cotton PANTS with kurtas.

Explanation:

As JAIPUR and jhodpur are very hot in summer and the temperature is also very high so the CLOTHES should be made up of cotton. Cotton is a good absorber so it will ABSORB sweat very efficiently which will help the BODY to remain cool.

HOPE it HELPS you DEAR ❤❤

Answer:

No, this would not happen the WAY your second DRAWING depicts because the HYDROGENS do not orient themselves that way. Intramolecular hydrogen BONDING would be no more FEASIBLE in ethandioic acid than any other monocarboxylic acid. See picture below:oxalic acid

Answer:

yes the broken atom of GOLD is less efficient as compared to a piece of gold because as they are smaller the quality and quantity is also DIVIDED to SEVERAL but a piece of gold is made off DIFFERENT gold atoms then the PROPERTY will be same

Answer:

Vitamin K deficiencies in newborns are associated with vitamin K deficiency BLEEDING or VKDB (also known as hemorrhagic disease of the newborn). This can CAUSE excessive bleeding and bruising and, in severe CASES, can lead to fatal bleeding into the brain.

Answer:

Here H2 is oxidized

CuO is REDUCED

H2 is REDUCING agent

CuO is OXIDISING agent

Explanation:

Difference between BURNING of CANDLE and burning of candle wax:-

• Burning of candle is chemical reaction and burning of candle wax is PHYSICAL reaction.
• Melting is a change (physical) of state from solid to liquid whereas burning is (a chemical change) an OXIDATION of a hydrocarbon producing CO2 + H2O

Explanation:

there is a MAIN DIFFERENCE between VAPOUR and gas. Vapour is FORMED only when we heated SOMETHING or gas remains at room temperature

<STRONG>ANSWER:

Plasma can be ARTIFICIALLY generated by HEATING or subjecting a NEUTRAL gas to a strong electromagnetic field to the point where an ionized gaseous substance becomes increasingly electrically conductive, and long-range electromagnetic fields dominate the behaviour of the matter.

ANSWER:

what are the options....

pls GIVE...

FOLLOW MEEEEEE....

mark me as Brainliest....

Answer:

"YES"... is the answer ______

Rancidity can be retarded by storing FOODS AWAY from light.

This happens because the oxidation of food is prevented and rancidity is DELAYED

ANSWER:

GC was ACTIVATED in sulfuric ACID solution by cyclic voltammetry, which generate surface oxygen containing functional groups such as OH group, through which the IL was COVALENTLY bonded the surface of GC

Answer:

EFFECT of some ORGANIC surfactants on corrosion inhibition of STEEL in sea WATER. Author(s): ... The inhibition efficiency of these compounds increases with their concentration and reaches a maximum value around their critical micelle concentrations (CMCS).

EXPLANATION:

NO2 + H2O = HNO3 + NO........

ANSWER:

radhika will get more warmth because air will get trapped in the SPACE between two blankets but in a SINGLE blanket the air will be trapped only on the surface which is very less than that if THREE blankets

ANSWER:

This is because gases CONDUCT ELECTRICITY at very high TEMPERATURE and very low PRESSURE.

ANSWER:

HIII PLEASE MAKE me BRAIN list

Plzzz

Answer:

Answer:If by "biggest" and "smallest", you mean mass (which is a measure of how much matter is there), then the smallest is the hydrogen atom with one PROTON and one electron. Since ELECTRONS are about 2000 times less massive than PROTONS (and neutrons), then the mass of an atom is MOSTLY from the protons and neutrons.

Explanation:

their many ways to PREVENT them-

using CNG in place of petrol.

don't USE VEHICLE for NEAR by place

use MANURE instead of fertilizer.

Explanation:

This depends on the chlorine demand, which is that water can exist Iron (II), MANGANESE, ORGANIC matter and ammonia, then their presence may consume chlorine and previously should evaluate how much chlorine is consumed and depending on bond this remnant is added regularly the minimum value recommended FREE chlorine is 0.3 mg / L, this after having reached the breaking point, which is where you will START to measure free chlorine. As comments Cotruvo consider necessary contact time and a minimum half hour is recommended, however this depends UPON the desired microorganism inactivation, as in the case of Giardia is necessary to contact two hours.

Answer:

EXAMPLES of chemical changes include combustion (burning), COOKING an egg, rusting of an IRON pan, and mixing HYDROCHLORIC acid and sodium hydroxide to make salt and water.

Hope it helps

Mark as BRAINLIEST answer.please

Answer:

342g.

Explanation:

Sugar formula is C12H22O11 (SUCROSE).

Carbon Molar Mass= 12g

Hydrogen Molar Mass= 1g

Oxygen Molar Mass= 16g

Therefore,

Sugar (C12H22O11) Molecular Mass=

= 12*12+1*22+16*11

= 144+22+176

= 342g

Hope it will be helpful.if plz MARK me as brainliest.

ANSWER:

no, it's impossible

Explanation:

I've can MELT at 0 degree celcius but for vaporisation it must be above 100 degree celcius

Explanation:

The pascal (Pa) is the standard UNIT of pressure. A pascal is a very small amount of pressure, so the more USEFUL unit for everyday gas pressures is the kilopascal (kPa). A kilopascal is EQUAL to 1000 pascals. Another commonly used unit of pressure is the atmosphere (atm).

ANSWER:

It's distillation.

hope it HELPS

PHOSPHORUS has atomic mass of 31u. Now we know that WEIGHT of 1 MOLE of element or compound=(atomic mass or FORMULA mass) grams. ... mass of 1 molecule of P4 atom=124÷(6.023×10^23)

ANSWER:

H.C.F of 1872 and 1320

Answer= 24

Answer:

The FUNDAMENTAL DIFFERENCE between these COMPOUNDS is the presence of OH groups in the alcohol that are missing in the ether. Because hydrogen bonds can't form between the molecules in the ether, the BOILING point of this compound is more than 80°C lower than the corresponding alcohol.