Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

CIRCLE the incorrect word and write the correct word

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ne blank.

1. Oxygen is mainly present as a triatomic molecule.

2. A mixture of oxygen and sulphur dioxide is used as a medical anaesthesia gas.

3. Trinitrotoluene is used as a refrigerant in HOSPITALS for storing and preserving

blood, TISSUES and cornea of the eye.

4. Carbon dioxide is 3.5 TIMES heavier than air.

5. Carbon cycle is the natural process by which water is circulated throughout

the earth.

6. Among all the inert gases, krypton is the most abundant in air.

Choose the correct OPTION

Answer:

Copper SULPHATE is HIGHLY soluble in WATER and THEREFORE easy to distribute in ENVIRONMENT.

by TESTING its HARDNESS

ANSWER:

True solution: SIMPLE SUGAR solution in water.

Suspension: mixture of CHALK and water / muddy water / mixture of flour and water

ANSWER:

MOLECULAR FORMULA of the COMPOUND is BACL2.

ANSWER:

TRUE solution and collide solution particles cannot be SEPARATED from the SOLVENT unlike a suspension. collide solution is heterogenous in nature where as true solution is homogeneous in nature collide solution are quite suitable and true solution are very suitable .

Answer:

It is used in homes for drinking, cooking food, washing utensils, BATHING, and domestic purposes.

It is used in agriculture for GROWING food.

It is used in industries for the MANUFACTURE of DIFFERENT products.

It is used seas and rivers for transport purposes.

It is used in the dispersal of seeds

ALCL3 DISSOLVES in WATER

Pyrolysis is a thermochemical decomposition of organic material at high temperatures in the absence of oxygen. It involves the change of chemical composition as well as PHYSICAL state. It is an irreversible process. The process is USED heavily in the chemical INDUSTRY to produce charcoal, activated CARBON, to convert biomass into biochar, to turn waste into safely disposable substances.

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Answer:

a) 3° CARBONATION>2°>1°

the specie or CHEMICAL substance which carries single electron is CALLED free radical.

C) CH3

1

cH3-CH-Co-CH2-COOH

d) 3- hydroxy pentanal

Answer:

sodium (NA) + CHLORINE(Cl) =Nacl

Answer:

Intermolecular hydrogen BONDING – Intermolecular hydrogen bonding is formed between TWO or more different MOLECULES of the same or different types. ... Intramolecular hydrogen bonding – Intramolecular hydrogen bonding exists WITHIN the same molecule, then it is called intramolecular hydrogen bonding.

EXPLANATION:

The specific heat is the amount of heat per unit mass required to raise the temperature by one DEGREE Celsius. The relationship between heat and temperature CHANGE is USUALLY expressed in the form shown below where c is the specific heat.

ANSWER:

I THINK the answer is (C)

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Explanation:

A H2SO4 solution has a DENSITY of 1.122 g/mL and a MOLALITY of 4.500 m. Find the MASS percent of the solution. ANSWER to four SIGNIFICANT figures.

Given:-

→ Number of moles of MgCl₂ = 4.00

→ Number of moles of WATER = 40.0

To find:-

→ Mass percent concentration of MgCl₂.

Solution:-

[Mg = 24 g/mol ; Cl = 35.5 g/mol]

Molar mass of MgCl₂ :-

= 24 + 35.5×2

= 24 + 71

= 95 g/mol

[H = 1 g/mol ; O = 16 g/mol]

Molar mass of water (H₂O) :-

= 1×2 + 16

= 18 g/mol

________________________________

Mass of MgCl₂ in the solution :-

= No of moles × Molar mass

= 4 × 95

= 380g

Mass of water in the solution :-

= No of moles × Molar mass

= 40 × 18

= 720g

________________________________

Mass percent concentration of MgCl₂ :-

= 380/[380 + 720] × 100

= 380/1100 × 100

= 38000/1100

= 34.5%

THUS, required concentration is 34.5% .

ANSWER:

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Explanation:

9375

ANSWER:

Answer of this question is AIR needs SPACE to position. THANKS! Hope it will HELP you.

THANK YOU FOR THE INFORMATION!!

ANSWER:

because it CONTAINS as MUCH ELECTRON as PROTON.

(d) CALCULATE the Normality Molarity and MOLALITY of 49% of w/w) H SO, solution, WHOSE density is 1.2g/ml

ANSWER:

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ANSWER:

this is UR answer .

..

..

..

..

..

..

ANSWER:

POTENTIAL ENERGY because energy is in MOVING FORM

Diazotisation: The process of conversion of a primary AROMATIC amino compound into a DIAZONIUM salt, is known as diazotisation. This process is carried out by ADDING an aqueous SOLUTION of sodium nitrite to a solution of primary aromatic amine (e.g., aniline) in excess of HCl at a temperature below 5°C.

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Answer:

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ANSWER:

OXIDATION REACTION

N is oxidised by O

Answer:

Which of the following RESONATING structures of `1-`methoxy-`1`,`3`-BUTADIENE is LEAST stable?

Top answer · 146 votes

`CH_(2)=CH-overset(-)CH-overset(+)CH-overset(..)UNDERSET(..)CH_(3)` `overset(-):CH_(2)-CH=CH-CH=overset(+)underset(..)O-CH_(3)` `CH_(2)=CH-overset(-)overset(..) .

Explanation:

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ANSWER:

H2 (Hydrogen) is the gas that is FASTEST DIFFUSE among the all GASES

Answer:

AMMONIUM ions can be identified in a solution by adding DILUTE sodium hydroxide solution and gently heating. If ammonium ions are present, they will be converted to ammonia gas. Ammonia has a characteristic choking smell. It ALSO TURNS damp red litmus paper or damp universal indicator paper blue.

Explanation:

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Answer:

In Mendeleev's PERIODIC table, the noble elements were not INCLUDED as they were not discovered at that time. In MODERN periodic tables, the noble elements were PLACED in groups as a last and separated group.

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Explanation:

Answer:

1. MENDELEEV

2. dobereiner traid

3. law of octave

4. mendeleev's periodic table

5. modern periodic table

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ANSWER:

EMULSION bases

Explanation:

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ANSWER:

i DONT KNOW the answer

ANSWER:

Answer is 73 gram.

Explanation:

So, one mole of NaCl WEIGHS 58.44 g. A 2.5 M solution is 2.5 moles per liter (Molarity is just the NUMBER of moles per liter). Therefore, 0.5 L WOULD contain 1.25 mol. Hence, you would need 1.25 × 58.44 g = 73 g.

Explanation:

A screw is one of the most commonly USED mechanical devices in the WORLD. It is a machine that CONVERTS rotational MOTION into linear motion.

EXPLANATION:

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Answer:

The reducing character increases from sodium to caesium.

Explanation:

The alkali metals have low VALUE of ionization ENERGY which DECREASES down the group and so can easily lose their VALENCE electron and thus ACT as good reducing agents.

ANSWER:

melting of WAX again leads to no LOSS of volume of wax not very accurately but we are CHANGING the shape.

burning leads to the vapour of wax

Answer:

i) mendeleev

ii)triads

iii)law of octave

iv)mendeleev's law

v)periodic table

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ANSWER:

have same ATOMIC no. have same VALENCE ELECTRONS and VALENCY too!

ANSWER:

MARATHI KE KAVI the

Explanation:

this is CORRECT answer

ANSWER:

BENZENE hexachloride Or GAMMEXANE is your answer

A question is an utterance which typically functions as a request for INFORMATION, which is EXPECTED to be provided in the form of an answer.

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ANSWER: Nitrogen

Explanation:

COMBUSTION at high TEMPERATURE in atmospheric air which is 78% notrogen creates small amount of several nitrogen oxides which is non combustible gas but HELPS in combustion.

Answer:

1.Zno

2.co2

3. CO2+c

4.Nh

5.zncl +H2

Explanation:

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