Explore topic-wise InterviewSolutions in Current Affairs.

Jkkbhinbvgjilnbnnj.


HIH

For DETECTING PROTIENS SUITABLE regenant is OPTION C

1) in CHEMICAL change new product is formed.
& chemical change take place.

2) MgoH2 is aqueous , & strong Salt

3) burning NEEDS o2 while rusting need Air & water both

4) burning of WOOD is non covential form of ENERGY.
while glow in bulb may be covential energy (solar cells)

5) Magnesium ribbion burn with spark.

Magnetite is a rock mineral and one of the MAIN iron ores, with the chemical formula Fe3O4. It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a MAGNET and can be magnetized to become a permanent magnet itself. It is the most MAGNETIC of all the naturally-occurring MINERALS on Earth.

From paint stripper to nailpolish REMOVER, HOUSEHOLD solventsare all too common throughout every home. A solvent is a SUBSTANCE that DISSOLVES another substance forming a solution. ... Some household MAINTENANCE and cleaning products contain organic solvents such as petroleum distillates.

By volume, DRY AIR contains 78.09%NITROGEN, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average AROUND 1% at sea level, and 0.4% over the entire atmosphere.

A chemical element is a species of atoms having the same number of PROTONS in their atomic nuclei. For example, the atomic number of OXYGEN is 8, so the element oxygen consists of all atoms which have exactly 8 protons
Examples of elements include oxygen, hydrogen, sodium, CHLORINE, lead, iron

1.a.physical CHANGE is a change in which a new SUBSTANCE is not FORMED.but in chemical new substance is formed.
b.the chemical COMPOSITION of the MATERIAL won't change
c.mostly ,these are reversible.

The FIRST step that is required to prepare LEAD sulphate from lead carbonate is to CONVERT lead carbonate to lead nitrate by REACTING it with dilute NITRIC acid.

PbCO3 + 2HNO3 = Pb(NO3)2 + H2O + CO2

6 electroscope is a instrument which is used for detecting and MEASURING electricity when any object with suspected static is brought near the metal or ball of electric scope then it repeal the object.
7.Sorry I don't know
8.lightning takes place when hav8er negatively charged particles sk8n to bottom of the cloud when the positive and negetive charge grow LARGE then a giant lightning occurs.
9.one DAMAGE caused is volcanic eruption

10.there are different causes by earthquake
volcanic eruption , TECTONIC movement,different geographical default etc
hope it is helpful I know only this MUCH plz mark as brainlist.

When we add COPPER CARBONATE sulphuric ACID hydrogen was displaced by sulphate

HI

When hydrogen GAS combines with NITROGEN to form AMMONIA the FOLLOWING chemical reaction will take place. Our equilibrium reaction will be N2(g) + 3H2(g) ⇔ 2NH3(g) + Heat. In this case, Hydrogen and nitrogen react together to form ammonia.

Bye

Because NITROGEN has p³ CONFIGURATION and OXYGEN has p4 configuration
nitrogen is HALF filled so more energy is required to REMOVE electron from nitrogen then oxygen

The FORMULA of its HYDROXIDE is X(OH)3

When MAGNESIUM is BURNT, it is mixed with Oxygen and forms Magnesium OXIDE. When Magnesium Oxide is mixed with water then it forms Magnesium Hydeoxide.

On REACTING ZNSO4 with H2SO4 h2 displaced by ZN

Actually mass of 1 ATOM of nitrogen is 14 u

(u=atomic mass unit)

Mass of 1 mole=mass of 1 atom of nitrogen * Avagadro's no * 1.6 *10⁻²⁴

(since 1 amu=1.6* 10^(-24) gm)

=14*6.022*10²³*1.6* 10⁻²⁴ =14 gm

:)

Potassium,SODIUM and Lithium I GUESS...but do you WANT it in 1st group or 2ND group?

No co REPRESENTS cobalt (ELEMENT)whereas CO is carbon MONOXIDE so LAKSHMI's statement is WRONG

(MNO4)- is the COMPLEXION

No.of MOLES at STP=given volume/molar volume
Moles=89.6l/22.4l=4moles.
1 mole=6.02*10^23 MOLECULES
So,4moles =4*6.02*10^23 molecules
So option 4 is correct.

PS:please MARK as BRAINLIEST please!!!!!

HEY DEAR,

HERE IS YOUR ANSWER...

The balloon is usually FILLED with hydrogen due to lower cost, though helium can be used as a substitute.A WEATHER balloon is something that people who study weather send up into the air to learn more about weather and find weather patterns.  Hydrogen is used in weather BALLOONS because they are very light which help the balloon to float or fly easily.

so, i think due to light weight and easily availaible it is  hydrogen gas is used in pplace of helium in whether balloons .  due to their light weight also it is used.........

HOPE IT HELPS YOU...

&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&

THANKS..

MARK ME BRAINLIEST PLZ  :)

No, we all not REALLY TOUCHING EVERY OBJECT.

BUTANE structural FORMULA is C4H10 with all SINGLE BONDS.

K           L             M            N    ....................................

2            8              18          32  ...................................

the m shell  can contain 1 to 18 electrons

When a negatively CHARGED OBJECT, for instance,is PLACED near an UNCHARGED object, the NEGATIVE charges move away from the charged object and the positive charges move towards the charged object.

Racemization is the PROCESS involved in the production of a racemate (An equimolar mixture of a pair of enantiomers (RS and SR), which does not EXHIBIT optical activity.) from a CHIRAL starting MATERIAL in which one enantiomer is present in EXCESS.

 

Chiral resolution or resolution in stereochemistry is a process for the separation of racemic compounds into their enantiomers or the separation of a racemate (An equimolar mixture of a pair of enantiomers (RS and SR), which does not exhibit optical activity.) into the component enantiomers.

Metal CARBONATES are basic SUBSTANCES. So, their reaction with strong mineral acids like hydrochloric ACID is often termed as neutralisation reaction.

Both metal carbonates and bicarbonates get readily decomposed by mineral acids with evolution of carbon dioxide (CO2) bubbles.

When hydrochloric acid is added to SODIUM carbonate, brisk effervescence of CO2 occurs, along with the FORMATION of sodium chloride and water.

Na2CO3 + 2HCl = 2NaCl + CO2 + H2O

When two chemicals is MIXED into another CHEMICAL then chemical reaction takes place. IT MEANS ACTION +ACTION = REACTION. HOPE IT HELPED YOU. PLEASE MARK AS BRAINLIEST

First LEARN NCERT QUESTION and answer & in text question
second learn reference books
If you learn PROPER you can get GOOD exam

HOPE the SOLUTION HELPS :)

Heya mate here is your answer
Topics in the Chapter
• Introduction
• The COVALENT Bond
• VERSATILE nature of Carbon
• Chemical Properties of Carbon Compounds
• Important Carbon Compounds
• SOAPS and Detergents
Introduction
→ Compounds are of two types:
(i) Organic Compounds
(ii) Inorganic Compounds
→ Organic Compounds are made up of Carbons and form the basis of all LIVING organisms.
The Covalent Bond
→ Carbon always forms covalent bond.
→ The bond formed by sharing of electron pair between two atoms are known as covalent atoms
hope it helps Mark as BRAINLIEST if

Ch3Cl will undergo faster , as the BIGGEST barrier for an SN2 rxn is steric hindrance by neighboring groups , as H atoms are very TINY they do not sterically hinder the ATTACK of nucleophile

Whereas (CH3)3CCL has three methyl groups attached to the Alpha carbon. Hence it will undergo SN 1 rxn

The lightening conductors provide low RESISTANCE for CHARGES.
The charges(CURRENT) FLOWS through the conductor INSTEAD of flowing through building.
Thus conductors protect building.

At high pressure, the mean free path of electrons is quite low. The electrons don't get enough time to get accelerated. If the electrons don't accelerate for long, they can't gain the high velocity or kinetic energy that is required to ionize other atoms.

While your argument that if there are more atoms, more electrons can be obtained through ionization makes SENSE, you don't account for the fact that only high energy electrons can ionize electrons from the gas atoms. If there are too MANY gas atoms, the electrons collide MUCH before they have enough kinetic energy to ionize the atoms. If you cannot get a high number of electrons moving, you won't get sufficient current.

When the gas pressure is low (but not too low), the electrons get enough time (or distance) to accelerate. By the time they collide with an ATOM, they have gained enough kinetic energy from the electric field to ionize other atoms. Even though there are not many atoms from which electrons can be obtained compared to a gas at high pressure, there is more than enough to produce a measurable current.

If the gas pressure goes too low, your argument comes to PLAY. There won't be enough atoms to ionize and the conductivity decreases.

Only NH3 is CORRECT there is NOTHING like HN3..
so u can't CAMPARE then...

HOPE this is helpful to u... :-)