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Answer:

2AgBr (s) = 2AG + Br2

This reaction takes place in the presence of sunlight...

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ANSWER:

HEYA MATE.....

Explanation:

the option is 1...

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Answer:

Bohrs model of atom is contradicted by Heisenbergs uncertainly principle

EXPLANATION:

This so because according to bohrs THEORY, each ELECTRON in atom has a particular circular orbit. Thus, it as a precise momentum and position

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ऋणाग्र किरण नलिका (अंग्रेज़ी:कैथोड रे ट्यूब, लघुरूप:सी.आर.टी.) एक निर्वात नलिका होती है, जिसमें एक इलेक्ट्रॉन बंदूक (ऋणवेशिक स्रोत) और एक प्रदीप्त पटल होता है। इसमें इलेक्ट्रॉन को त्वरित करने और कोण देने के लिए आंतरिक या बाह्य प्रविधि (तकनीक) का प्रयोग होता है। ये नलिका पटल पर इलेक्ट्रॉन की किरण को डाल कर प्रकाश उत्सर्जित कर छवि निर्माण करने के प्रयोग में आता है। ये छवि किसी विद्युत संकेत तरंगरूप (दोलनदर्शी), छवि (दूरदर्शन, या संगणक पटल) या तेजोन्वेष (राडार) के लक्ष्य दिखाने के लिए होती है।

ANSWER:

It is a CHEMICAL CLEANING or PURIFYING AGENT

Answer:

a STATEMENT of Assertion (A) followed by a statement of Reasoning

(R) is GIVEN.

Explanation:

1. Assertion (A): All isotopes of a given ELEMENT SHOW the same type of chemical behave

Reason (R): The chemical properties of an atom are controlled by the NUMBER of  electrons in the atom.

(i) Both A and Rare true and R is the correct explanation of A.

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Answer:

Fermentation, chemical process by which MOLECULES such as glucose are broken down anaerobically. More broadly, fermentation is the FOAMING that OCCURS during the manufacture of wine and beer, a process at least 10,000 years old.

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Answer:

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.[1] For example, the electron configuration of the NEON atom is 1s2 2s2 2P6, using the notation explained below.

Electronic configurations describe each electron as moving independently in an orbital, in an average field created by all other orbitals. Mathematically, configurations are described by Slater determinants or configuration state functions.

According to the laws of quantum MECHANICS, for systems with only one electron, a level of energy is associated with each electron configuration and in certain conditions, electrons are able to move from one configuration to another by the EMISSION or absorption of a quantum of energy, in the form of a photon.

Knowledge of the electron configuration of different atoms is useful in understanding the structure of the periodic table of elements. This is also useful for describing the chemical bonds that hold atoms together. In bulk materials, this same idea HELPS explain the peculiar properties of lasers and semiconductors.

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ANSWER:

SOLID

EXPLANATION:

because they are TIGHTLY PACKED to each other

ANSWER:

i am WATCHING MAHABHARATA

ANSWER:

a)MgCl2

Explanation:

MAGNESIUM CHLORIDE :MgCl2

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Answer:

In the experimental (non-clinical) research arena, good laboratory practice or GLP is a quality system of management controls for research laboratories and organizations to ensure the uniformity, consistency, reliability, reproducibility, quality, and integrity of products in development for HUMAN or animal health (including pharmaceuticals) through non-clinical SAFETY tests; from physio-chemical properties through acute to chronic toxicity tests.

GLP was first INTRODUCED in New Zealand and Denmark in 1972, and later in the US in 1978 in response to the Industrial BioTest Labs scandal. It was followed a few years later by the Organization for Economic Co-operation and Development (OECD) Principles of GLP in 1992; the OECD has since helped promulgate GLP to many countries.

GLP APPLIES to non-clinical studies conducted for the assessment of the safety or efficacy of products in development (including pharmaceuticals) for MAN, animals and the environment. GLP, a data and operational quality system, is not the same as standards for laboratory safety - appropriate gloves, glasses and clothing to handle lab materials safely. The principles of GLP aim to ensure and promote safety, consistency, high quality, and reliability of chemicals in the process of non-clinical and laboratory testing. GLP is not limited to chemicals and also applies to medical devices, food additives, food packaging, colour additives, animal food additives, other non-pharmaceutical products or ingredients, biological products, and electronic products.

Explanation:

yes,space between the particles influence the SPEED of diffusion. speed of diffusion is directly PROPORTIONAL to SPACES between the particles. ... example-gases have high INTERMOLECULAR spaces than solid and liquid so they have FASTEST speed of diffusion than solid and liquid.

Answer:

This REACTION is an example of displacement reaction.

Explanation:

Here ALUMINIUM is more reactive metal than iron.

Therefore aluminium will DISPLACE iron from its oxides.

This type of CHEMICAL reaction in which one of the element will displace another is called as displacement reaction.

ANSWER:

Phenols can undergo Friedel-‐Crafts alkylation. It's best to use reagents that can generate the electrophile without the use of LEWIS acids. Friedel-‐Crafts acylation on phenols require HARSHER conditions, e.g., high temperature. The phenol becomes a complex with AlCl3 and consequently its activity is decreased.

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Answer:

HENCE the HEATING effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is CALLED the Joule's equation of electrical heating. b)The resistance of the filament used in the BULB. A 2.5 KW immersion heater is used to heat water.

OPTION A is CORRECT.

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Answer:

When temperature and wind SPEED are constant, but humidity increases, the rate of EVAPORATION will DECREASE. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than COLDER air....

•When zinc REACTS with steam, zinc OXIDE and HYDROGEN gas are produced.

Zn(s) + H2O(g) -> ZnO(s) + H2(g)

•Aluminium reacts with water to produce hydrogen gas

2Al(s) + 3H2O(g) -> Al2O3(s) + 3H2(g)

•When red hot IRON reacts with steam to form iron (II, III) oxide and hydrogen

3Fe(s) + 4H2O(g) steam -> Fe3O4 (s) + 4H2(g)

ANSWER:

CATHODE rays are originating from cathode as cathode is negatively charged. These rays then hit the gas sample inside the tube and ionize it. The electrons ejected from the ionisation of the gas travel towards anode. These rays are ACTUALLY electrons PRODUCED from the ionisation of the gas inside the tube.

Answer:

CHEENI KA SUTRA =C₁₂H₂₂0₁₁

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ANSWER:

NUMBER of ATOMS- 1.2 ×10^23

substance which are sour in taste and give OH+ ONS when dissolved in water is known as acid some of the COMMON acid are hydrochloric acid and SULPHURIC acid

those substance which is bitter in taste and GIVES oh mins when DISSOLVE in water is known as base

A SOLUTION in which the size of a particles is intermidiate between those in TRUE solution and suspension is called as colloids or COLLOIDAL solution.

Example:- soap solution,starch solution,blood,INK,MILK etc.

Answer:

❤. In reference to this process rapid chilling stands for the process that reduces TEMPERATURE quickly avoiding this and other risks from HAPPENING when HANDLING perishable products.

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Answer:

1,3 PENTA DIENE is the IUPAC NAME

ANSWER:

Yes. Technically, solution simply means any homogeneous MIXTURE of any two SUBSTANCES. Therefore ALLOYS are solutions. In FACT, almost all known alloys are classic textbook-examples of solid solutions.

Answer:

GIVEN,

ONE lamda = 3.6 A°

= 3.6 A°

We know that,

VELOCITY of photon =velocity of light

where,

m = h / lamda × v

= 6.626×10^-34 J s / (3.6×10^-10 m)(3×10^8 m s-¹)

= 6.135 ×10^-29 Kg

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Answer:

976464646498646565992*5

Explanation:

/6461646643164

ANSWER:

First of all, benzene is converted in a HYDROGENATION step to cyclohexane (that present in the hydrocarbon mixture (HM2)), while MCP is isomerized in the PRESENCE of a catalyst, preferably of an acidic ionic liquid, to cyclohexane

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ANSWER:

CH2=CH-CH=CH2. IUPAC NAME: buta-1,3-diene.

Explanation:

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Answer: MG+ HCL= MGCL2 + H2

mg + H2SO4 = H2 + mgSO4

Fe + HCL = Fecl2 + H2

Fe + H2SO4 = Fe2(SO4)3 + SO2 + H2O

Ca + HCL = Cacl2 + H2

Ca + H2SO4 = CaSO4 + H2

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Answer:

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✔Kelvin= 273+Celcius.

☑THUS the LOWEST temperature cannot come in negative Kelvin, as -273 degree celcius= 273+(-273) kelvin = 0 kelvin.

☑Thus, -1 kelvin is not known till now. Thus, the kelvin scale starts from 273K (0 degree celcius).

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Answer:

The minimum FREQUENCY at which a METAL EMIT photoelectron is KNOWN as threshold frequency

Explanation:

ANSWER:

ਜਹਲ੬ਕ ਦ੫ਲ੫ਦ ਚਗਜ੬ ਤਦ ਯਹੋਵਾਹ ਦੇ ਲੋਕਾਂ ਨੂੰ ਆਪਣੇ ਲੋਕਾਂ➡ ਨੇ ੬ਤ ਤਡ਼ਕਾ ਸ੬ਡ੪ਤ ਦਬ ੫ਚ ੫ਤ੫ ੫ਕ੫ ਤ੬

ANSWER:

BARIUM (BA) is an ALKALINE EARTH metal

Explanation:

Explanation:

The increase in MASS is due to the fact that oxygen from the air has combined with the magnesium to make magnesium oxide, MgO. The CHEMICAL equation, Mg + O2 MgO shows this reaction but it needs to be BALANCED to make 2Mg + O2 2MgO.

Answer:

The HEAT required to convert 1gram of SOLID into liquid state at atmospheric pressure without change in temperature I. e. boiling point is called latent heat of FUSION.

Explanation:

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ANSWER:

COPPER in SLIVER..... is CORRECT answer

Answer:

Explanation:

Difference between Homogeneous and Heterogeneous Mixture

Homogeneous mixture                     Heterogeneous mixture

It has a uniform COMPOSITION      It has a non-uniform composition

It has only one PHASE                      T here are TWO or more phases

It can't be separated out physicall    It can be separated out physically

'homo' means the same               'hetero' means DIFFERENT

ANSWER:

H=Rt

200=5x1

=40

I=

V=IR=2x5=10V

Explanation:

ANSWER:

When the wind blows, the blades START moving and spin a shaft that leads from the hub of the rotor to a generator. The generator takes the energy produced from the ROTATION and turns it into electricity. Like solar cells, the energy created by wind turbines is converted into USABLE AC power with an INVERTER.

Answer:

In pure water at the negatively CHARGED cathode, a reduction reaction takes PLACE, with electrons (e−) from the cathode being given to hydrogen cations to form hydrogen GAS. The half reaction, balanced with ACID, is: Reduction at cathode: 2 H+(aq) + 2e− → H2(g)

Answer:

DISTILLATION is the process USED to PREPARE distilled WATER.

Answer:

>>>When an electron drops from n = 2 to n = 1, it emits a photon of ultraviolet light. The step from the second energy LEVEL to the third is much SMALLER. It takes only 1.89 eV of energy for this jump.

Answer:

Explanation:

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ANSWER:

naksoehe Chuckcouchsparpapier

Explanation:

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Answer:

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Explanation:

The ammonium CHLORIDE can be separated from the mixture of ammonium chloride and salt by the PROCESS of sublimation

Explanation:

the greatest volume of air that can be expelled from the lungs after taking the DEEPEST possible breath

Vital capacity (VC) is the maximum AMOUNT of air a person can EXPEL from the lungs after a maximum inhalation. It is equal to the sum of inspiratory reserve volume, TIDAL volume, and expiratory reserve volume. ... A person's vital capacity can be measured by a wet or regular spirometer.