Explore topic-wise InterviewSolutions in Current Affairs.

Hey mate,. Here is your answer METALS are electropositive elements which attract negative charge and non metals are electronegative elements which attract positive charge EG are as metals - sodium , magnesium and non metals like OXYGEN WHEREAS metalloids shows properties of both metals and non metals eg like germanium and GALLIUM etc...

This is the EASY WAY to FIND the OXIDATION NUMBER.

It's PH will DECREASE..

Let MOLECULAR mass of gas is M g/MOL.

given, mass of gas at STP [ standard temperature and PRESSURE ] = 0.2231g

so, NUMBER of mole of gas, n = 0.2231/M

VOLUME of gas, V = 94.5 ml

at STP,

temperature , T = 273.15K

pressure , P = 1atm

from gas equation,

PV = nRT

or, 1atm × 94.5 ml = (0.2231/M)mol × 0.082 atm.L/mol.K × 273.15K

or, 1atm × 94.5 × 10^-3 litre = (0.2231/M)mol × 0.082 atm.L/mol.K × 273.15K

or, M = 0.2231 × 0.082 × 273.15/(94.5 × 10^-3)

= 52.87 g/mol

hence, molar mass of gas = 52.87 g/mol

Can you EXPLAIN the QUESTION more BRIEFLY

1. Deforestation is harmful for environment because
a) It causes less rainfall.
b) It LOWERS groundwater table.

2.
He does so because the outermost layer of flame is the HOTTEST so gold melts easily when it is put on non luminous outermost layer

4.
Coal release carbon monoxide gas when burnt. carbonmonoxide is very harmful gas which can cause death due to choking.

5.
It should be done because campaign fire can INCREASE and can become DANGEROUS.

ʜᴇʟʟᴏ ᴅᴇᴀʀ.....

ᴄᴏʀʀᴇᴄᴛ ᴀɴꜱᴡᴇʀ..✔✔✔✔✔✔✔

ᴡᴜʀᴛᴢ ʀᴇᴀᴄᴛɪᴏɴ----------------------&ɴ ᴄʜʟᴏʀᴏʙᴜᴛᴀɴᴇ ɪɴ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ɴᴀ ᴍᴇᴛᴀʟ ᴀs ᴄᴀᴛᴀʟʏsᴛ ɪɴ ᴅʀʏ ᴇᴛʜᴇʀ ɢɪᴠᴇs ɴ ᴏᴄᴛᴀɴᴇ
✔✔✔✔✔✔✔
ᴏʀ 
✔✔✔✔✔✔✔
ᴄᴏɴᴠᴇʀᴛ ɪᴛ ɪɴᴛᴏ ɪᴏᴅɪᴅᴇ ʙʏ ᴋɪ ᴏʀ ɴᴀɪ ᴀɴᴅ ᴜsᴇ ᴢɴ ᴀs ᴀ ᴄᴀᴛᴀʟʏsᴛ ғʀᴀɴᴋʟᴀɴᴅ ʀᴇᴅᴜᴄᴛɪᴏɴ ᴡɪʟʟ ᴛᴀᴋᴇ ᴘʟᴀᴄᴇ ᴀɴᴅ ɢɪᴠᴇ ɴ ᴏᴄᴛᴀɴᴇ.

❤❤❤❤❤❤❤❤❤❤❤

1/c
6/a
2/d
5/b
4/f FIRST and SECOND COLUMN

The volume of a given mass of a dry GAS is inversely proportional to its pressure it constant TEMPERATURE. BOYLE's LAW may also be STATED as the product of the volume and pressure of a given mass of a dry gas at a constant temperature is constant.

hydrogen gas. Most of the metals react with WATER and form metallic hydroxide and RELEASE hydrogen gas

Inch SCALE ,meter scale centimeter scale vernier scale, SCREW gauge and MANY more

Because of PRESENCE of PROTEIN COTTON SMELLS LIKE burning

Typing..............
True SOLUTION is a HOMOGENEOUS mixture of TWO or more SUBSTANCES in which substance dissolved (solute) in solvent has the particle size of less than 10-9 m or 1 nm. Simple solution of sugar in water is an example of true solution.

Yes......... NB and TA exhibit SIMILAR PROPERTIES.....

It reacts IMMEDIATELY as it COMES in contact with the atmospheric air. When exposed to air, it spontaneously ignites and is OXIDIZED rapidly tophosphorus pentoxide. ... This is the REASON for STORING White phosphorus in other solvents.

Ice cream and water are not same temperature.... the environment around them that is same temperature. ice cream is much LOWER temperature than water. So when ice cream comes in contact with your BODY, it extracts more heat due to larger temp difference b/w ice cream & your body as compared to that b/w water & your body.
Hence according to Fourier's law of heat transfer (Q=h*A*(Temperature of body - Temperature of environment), higher the temperature difference more is the heat LOST. Thus you FEEL ice cream to be more colder.

Lyophilic sols are stable as strong FORCES of interaction EXIST between colloidal PARTICLES and liquid ( dispersion medium) . so the lyophilic sols are highly viscous in NATURE and have higher VISCOSITY than that of the medium.

CO2 exists as a single molecule as it has no d-orbital . It forms p-pi_p-pi bonding  DUE to which it has WEAK van der WAAL forces  and  hence exist as GAS at room temp.

SO2 has d-orbital & forms p-pi_d-pi bonding. It exists as bigger 3-D  network  structures & hence have STRONGER van der waal  forces . Therefore exist as solid at room temp.

Heya . the ACIDITY of SUBSTANCE can be get from FINDING it's PH value .. where 7 is neutral ..
if ph value of any acid is 1 then that is strongest . above 7 comes basesity . hope it helps

Answer:

EXPLANATION:

These TWO reactions REDUCE ketonic group to hydrocarbons, HOPE you understood.

Here is the EXPLANATION to your QUESTION..

Thermodynamically which is the most stable form of CARBON are diamond ,carbon nanotubes, graphene ETC


I HOPE you UNDERSTAND it ☺️☺️☺️☺️.


Mark me as BRAINLIST ☺️☺️☺️☺️☺️☺️☺️☺️☺️

Here is your ANSWER PINNED

Hola USER!!

I think some mistake in your QUESTION!!
I'll correct it answer it!!

Your answer :-

°F = Farenhiet

°C = CELSIUS

K = Kelvin
___________________

°F = 9/5 × °C + 32

°F = 9/5 × 25°C + 32

°F = 45 + 32

°F = 77

=> 77°

Or it can be like this!!

K = °C + 273

K = 25°C + 273

K = 298

=> 298K

Hope it helps!!

☆ REGARDS @e ☆

Cotton FLANNEL, POLYESTER fleece, and other SYNTHETIC FIBERS

I can't UNDERSTAND the VBT here

Sodium hydrogencarbonate on reaction with acetic acid releases carbon dioxide gas.
NaHCO3 + CH3COOH → CH3COONa + H2O + CO2

Test for carbon dioxide:
The PRESENCE of carbon dioxide can be tested by bringing a burning SPLINTER near the mouth of the cylinder containing carbon dioxide – it GETS extinguished.

If carbon dioxide is passed through limewater, it turns milky white.
Ca(OH)2 + CO2 → CaCO3  + H2O

Principle quantum no-
1. It REPRESENTS the SHELL or energy levels.
2. It is denoted by SMALL n
3. It never be 0. It's value are 1, 2,3 ETC.
4. It represents total no of electron in shell.

Similarities between VBT and MOT:

(I) They account for the directional nature of the bond.

(II) Bond RESULTS by the overlapping of two orbitals of minimum energy.

(III) Electronic charge persists in between two atomic nuclei in bond formation.

(IV) Atomic orbitals of same energy, and same symmetry overlap to produce strong bonds.

Dis-similarities between VBT and MOT

VBT

MOT1.Ineratomic orbital is produced by multiplying, exchanging and combinations of space wave functions of two electrons.

2.Orbitals of bonded atoms cannot lose their identity.

3.Atomic orbitals monocentric.

4.It explains that inert gases have orbital already spin paired, so they have no tendency to form any linkage.

5.Pauli’s exclusion principle DECIDES the spin FUNCTION combination with wave function as



 

6.VBT introduces a special form to explain the presence of ionic character in bond.

7.VBT explains the difference between bonding and antibonding orbitals as following:

 



1. Molecular orbitals are formed by of all atomic orbitals from the valency shell of two atoms.

2. Orbitals of bonded atoms lose their individual identity.

3. Molecular orbitals are polycentric

4. Molecular orbital theory explain the non-existence of molecules of inert gases, since NUMBER of bonding and antibonding electrons are equal

5. It explains how electrons are originally present in atomic orbitals and are distributed in new molecular orbitals.

6. MOT is not capable or predicting ionic character in a bond.

7. In MOT both bonding and antibonding orbitals can have electron PAIRS with opposed spins.

3 molar SOLUTION of KCL means 3 moles of KCl is present in ONE litre of WATER or 1000 ml of solution. So 3 moles of KCl are present in 1000 ml of solution

Synthetic clothes as in? Well, if I GET it like Synthetic thick hard clothes, then I would say its because of the rigidity that the synthetic FIBRE gives to protect the inner body from getting wet and MOREOVER as it is known fact that synthetic fabric is meant for wet WEATHER. You know right? Even the rain coats are made from synthetic material.

One and only reason is it resists and

Because water conduct the electricity and HENCE can give a SHOCK

By IMAGINING we can LEARN EASILY...

Cordination number=number of paticles to which the particle or ATOMS is sharing its boundary
valency=number of ELECTRONS in VALENCE SHELL