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Its IUPAC name is 2,2,6 TRIMETHYL 4 propyl OCTANE

A cloud is comprised of tiny water DROPLETS and/or ice crystals, a SNOWFLAKE is an aggregate of many ice crystals, and rain is justliquid water. Water existing as a GAS is CALLED water vapor.

These are some GOOD QUESTIONS of CLASS 11 NCERT

A neutralization reaction is when an acidand a base REACT to form water and a salt and involves the combination of H+ ions and OH- ions to generate water. The neutralization of a STRONG acid and strong base has a PH equal to 7

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transactinide elements (ALSO, transactinides, or super-heavy elements) are the CHEMICAL elements with atomic numbers from 104 to 120. Their atomic numbers are IMMEDIATELY greater than those of the actinides, the heaviest of which is lawrencium (atomic number 103).

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A)-ABSORBTION
B)-EVAPORATION
CONDENSATION

Carbon MONOXIDE is a component ofcomets. Halley's Comet is about 15% carbon monoxide. At room temperature and at atmospheric pressure carbon monoxide is actually only metastable (seeBoudouard reaction) and the same is true at low temperatures where CO and CO
2 are solid, but nevertheless it can exist for billions of years in comets. However, there is very little CO in the ATMOSPHERE of Pluto, which SEEMS to have been formed from comets. This may be because there is (or was) liquid water inside Pluto. Carbon monoxide can react with water to form carbon dioxide and hydrogen:

CO + H2O → H
2 + CO
2

This is called the water-gas shift reactionwhen occurring in the gas phase, but it can also take place (very slowly) in aqueous solution. If the hydrogen partial pressure is high ENOUGH (for instance in an underground sea), formic acid will be formed:

CO + H2O → HCOOH

These reactions can take place in only a few million years even at temperatures such as found at Pluto.

NACL DISSOLVES COMPLETELY in WATER.

THREE METALS are
SODIUM,CHLORIDE and CHLORINE

Rusting of iron is known as CORROSION.

To prevent corrosion u can use FOLLOWING method :
1. PAINT on iron
2. GALVANISATION

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The reason WINTER days are moreshock-prone than the lazy days ofsummer has to do with the LEVEL of moisture in the air. In the winter, morestatic electricity BUILDS up in our HOMES because the air is drier.

Because for the candle to burn oxygen is REQUIRED so when we cover it with an INVERTED JAR AMOUNT of oxygen in it reduces

Disadvantages of PLASTICS: Plastics bags are make of a non-renewable resource, which gives us more reasons to USE recyclable shopping bags. Plastic bags are also flimsy and do not sit as well as EITHER paper or cloth. They are a hazard to wildlife animals, if they are not disposed properly. LASTLY, plastic bags clogs roadside drains, which could cause the flooding of the street at heavy rainfalls.

If no.of REACTING SPECIES is one it us cLled first order RXN if two it iscalled second order b same for THREE

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Chemical REACTIONS are very DANGEROUS

So they take place in DIFFERENT ZONES.

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Dipole moments tell us about the charge separation in a molecule. The larger the DIFFERENCE in electronegativities of BONDED ATOMS, the larger the dipole MOMENT. For example, NaCl has the highest dipole moment because it has an IONIC bond (i.e. highest charge separation). Example 1: CH3Cl.

Metal+ ACID = Metallic Salt + Hydrogen gas
Ex: MG+ 2HCl = MgCl2 + H2
Metal+Base = Metallic Salt + Hydrogen gas
Ex : Zn + 2KOH = K2ZnO2 + H2

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Because the PARTICLES are much heavy and they can't be DISSOLVED in the suspension SOLUTION

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WE NEED AN EXCESS OF ONE ELECTRON FOR INCREASING THE CONDUCTIVITY,HENCE WE NEED PENTAVALENT IMPURITIES.


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Here your answer...BASE is NON reactant in metals....the ACID are reactant to metals.
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↪The value of a given physical quantity MAY vary over a wide range .

↪To EXPRESS the quantity in proper format we may need different units

↪Further a given quantity may be expressed in terms of different quantities , will have same DIMENSIONS which WOULD LEAD to different equivalent units of the same quantity .

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Bcoz. ELECTRONS can be loose easily.......
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The attraction between acetone molecules is WEAKER than those between water molecules. The NORMAL boiling point of acetone is less than that of water. So vapour pressure of a liquid acetone is higher than the water in a CLOSED container. ... Water has a RISK of freezing at LOWER temperature.

Because EVERY METAL is different inn nature having different ionisation enthalpy and lattice ENERGY...

different METALS have different force of attraction between nucleus and electrons ...

so temp. COFF. varies metal to metal

AS there are number of INFINITE elements, compounds, gases the periodic table is divided into 3groups , METALS, NON metals and metalloids for the IDENTIFICATION they will mark as 1a 2a

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✔Fluorine has Higher Ionization ENERGY than Sulphur because it comes under Halogens . And Halogens have the highest Ionization Energy as they need only ONE ELECTRON to COMPLETE its octet . so the tendency to gain electron is very HIGH


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ANSWER:

Explanation:

In mixture of water and ETHANOL,A-B interactions are weaker than A-A and B-B interactions.This is because water breaks the hydrogen BONDING in ethanol.Hence,there is POSITIVE deviation from Raoult law.

Ammonium chloride, a water-soluble salt of ammonia, is SLIGHTLY acidic as a water-based solution. The acidic component of ammonium chloride (Cl-) PRODUCES hydrogen (H+) ions when dissolved in water. The BASIC component (NH4+) produces hydroxide (OH-) ions when dissolved in water.

Aluminium is the most abundant metal on Earth. Despite this, it is EXPENSIVE, LARGELY because of the amount of electricity used up in the extraction process. Aluminium ore is called bauxite. The bauxite is purified to YIELD a WHITE powder, aluminium OXIDE, from which aluminium can be extracted.

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Although Fluorine has the highest electronegativity,
Chlorine has the highest electron affinity and this is because the CONSIDERABLE REPULSION in the tightly PACKED 2p SUBSHELL of Fluorine.

chlorine has the highest electron affinity.
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