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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1701. |
Find 4 rational numbers between -5/6 and 7/11 |
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Answer» REFER to the ATTACHMENT for your ANSWER |
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| 1702. |
if the valency of carbon is 4 and that of sulphur is 2 work out the formula of the compound formed by the combination of carbon with sulphur what is the name of this compound |
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Answer» Answer: Thus, FORMULA of the COMPOUND (formed by the combination of carbon and sulphur) is C2S4. The formula has a common factor of 2; therefore, dividing the formula by the common factor gives us the SIMPLEST CHEMICAL formula, i.e., CS2. This compound is called carbon disulphide. |
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| 1703. |
How many number of moles are equivalent to 8 grams of c02 |
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Answer» Answer: The number of moles of carbon dioxide which contain 8 g of oxygen is - (1) 0.5 MOLE (2) 0.20 mole (3) 0.40 mole (4) 0.25 mole mintomic gas has a mass of LO at. |
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| 1704. |
If the valency of nitrogen is 3 and that of hydrogen is 1 write down the formula for ammonia |
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Answer» Answer: NH3 Explanation: As Valency GET Cross MULTIPLIED. (LOL) |
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| 1705. |
Plzzz help me slove |
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Answer» Answer: 1.reactants 2.catalyst 3.balanced 4.right 5.oxygen. |
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| 1706. |
What is periodic table? |
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Answer» PERIODIC table is an ARRANGEMENT of all ELEMENTS |
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| 1707. |
when there is a difference on temperature between two bodies, a certain type of energy flows between them .Give one word |
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| 1708. |
Write the safety measures which you will adopt if you receive awarning related to volcanic eruption. (Imagine you are living near the volcanic eruption site) |
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Answer» IF YOU ARE UNDER A VOLCANO WARNING: Listen for emergency information and alerts. Follow evacuation or shelter orders. Avoid AREAS downstream of the eruption. |
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| 1710. |
How can we compare an atom, molecule and radical? |
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Answer» Answer: Atom is the smallest unit of matter. Molecule : Molecule is the smallest unit of a COMPOUND (or an ELEMENT) which always has an independent existance. RADICALS : A radical is an atom of an element or a GROUP of atoms of different elements that BEHAVES as a single unit with a positive or negative charge on it. |
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| 1712. |
What type of change is evolved in heating sugar |
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Answer» Answer: CHEMICAL change because new substance is FORMED also the bond between C6H12O6 is broken |
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| 1713. |
Mean of anger and surprise.no spam....otherwise I report your all questions ❌ |
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Answer» Answer: a strong feeling that makes you want to hurt someone or be UNPLEASANT because of something unfair or unkind that has happened: I think he feels a lot of anger towards his father, who treated him very badly as a child. There is a danger that anger at the new law MAY turn into anti-government feeling. The people showed no SURPRISE or anger at their treatment. He found it hard to contain (= control) his anger. Thesaurus: synonyms, ANTONYMS, and examples anger angerHe vented his anger by kicking the door. annoyanceSmoke can cause annoyance by making clothes and hair smell unpleasant. irritationShe expressed irritation with her son's attitude. frustrationA lot of children's behaviour problems are caused by sheer frustration. furyThe speech provoked fury in some PARTS of the world. rageHe was filled with jealous rage when he saw his girlfriend talking to another man. |
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| 1714. |
Revolution in geography match the following |
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Answer» revolution MEANS the long-term heating of Earth's climate SYSTEM OBSERVED since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere. thank u |
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| 1715. |
• The chemical formula of sulphuric acid is H2SO4 How manyhydrogen atoms are present in one molecule of sulphuric acid? |
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Answer» Answer: 2 Explanation: |
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| 1716. |
Carbon dioxide is an example fora) amphoteric oxideb) basic oxidec) acidic oxided) neutral oxide |
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Answer» Carbon DIOXIDE is an EXAMPLE for a) amphoteric oxide b) BASIC oxide c) acidic oxide✔️ d) NEUTRAL oxide Hope It Helps Please Mark As Brainliest |
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| 1717. |
Burning of a candle is an example of a/an process....................... |
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Answer» IRREVERSIBLE process |
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| 1718. |
Can you give a list of common elements and their symbols, atomic number etc. |
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Answer» Answer: ELEMENT symbole atomic no. phosphorus P 15 sulfur S 16 chlorine CL 17 argon AR 18 |
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| 1719. |
How biogas is produced in sewage treatment plant |
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Answer» Methanisation is the process that turns organic matter from co-products, by-products, waste, and wastewater into biogas, THANKS to the absence of oxygen. This process is also KNOWN as anaerobic DIGESTION, which PRODUCES a decentralised RENEWABLE energy. |
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| 1721. |
Give a balanced equation for preparation of carbon dioxide -a carbonate of a monovalent metal |
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Answer» CaCO3+2HCl→CaCl2+H2O+CO2. |
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| 1722. |
It has often been found that those who live in slum areas are prone to to several disease viz hepatitis, cholera, etc. Explain with example reason behind this and also suggest some remedy |
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Answer» Answer: In slums there is no MAINTENANCE of HYGIENE, and SLUM are basically located near sewage out let. Therefore,It has OFTEN been found that those who live in slum AREAS are prone to to several disease viz hepatitis, cholera, etc. please mark me as brainliest |
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| 1723. |
Please help us to find the answer!!! |
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Answer» Answer: the fundamental particles of an ATOM are proton and ELECTRON.......... |
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| 1724. |
Describe two ways in which iron is different from sulphur. |
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Answer» and then we have been TRYING, |
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| 1725. |
Formula of management oxide is |
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Answer» Answer: MAGNESIUM Oxide Formula and Structure The chemical and molecular formula of magnesium oxide is MgO. Its molecular WEIGHT or molar mass is 40.304 g/mol. Mark me as BRAINLIEST ❤️✨ |
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| 1726. |
You can see your face in shiny metal saucepan but you cannot see a reflection in a painted white wall. explain why |
Answer» Because it is shiny; therefore it ACTS as a mirror.What happens physically, which permits a mirror to ACT as a mirror, is that any deviation from a perfectly flat shape - any IMPERFECTION - is CONSIDERABLY smaller than the wavelength of visible light. |
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| 1727. |
Why lime which is alkalin in kerala |
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Answer» Explanation: Limestone is an alkaline agent with the ability to neutralize, or partially neutralize strong acids. The NEUTRALIZATION process occurs when strong acids, in intimate contact with limestone CHIPS, react with CALCIUM Carbonate (CACO3, the primary CONSTITUENT of limestone) to form water, carbon dioxide, and calcium salts. |
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| 1728. |
(a) Write one property of suspension.(b) Identify solute and solvent in 80% solution of ethyl alcohol with water.please give answer correctly |
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Answer» Answer:
Explanation: 2.ethyl alcohol is the solvent and water is the solute. |
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| 1729. |
Triatomic molecule among the following is |
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Answer» Answer: Triatomic molecules are molecules composed of three atoms, of either the same or different chemical elements. Examples include H2O, CO2 (pictured) and HCN. Explanation: Homonuclear Edit Homonuclear triatomic molecules CONTAIN three of the same kind of atom.That molecule will be an allotrope of that element. Ozone, O3 is an example of a triatomic molecule with all atoms the same. Triatomic hydrogen, H3, is unstable and breaks up spontaneously. H3+, the trihydrogen cation is stable by itself and is symmetric. 4He3, the helium trimer is only WEAKLY bound by van der Waals force and is in an Efimov state.[1] Trisulfur (S3) is analogous to ozone. Ozone is a molecule with three OXYGEN molecules.It is in the upper atmosphere and it protects living organisms by keeping UV rays from reaching the earth's surface. Ozone (O3) is a triatomic, molecule, consisting of three oxygen atoms. 2)Hydrogen,Nitrogen,Oxygen,Chlorine,bromine etc have two atoms in their molecules.So the atomicity is 2. They are called as DIATOMIC molecules. ... They are called as triatomic molecules. 4)Phosphorus has 4 atoms in its molecules,so the atomicity is 4. Thank me. Please mark me as Brainliest!!! |
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| 1731. |
Which gas humans and trees will take?? |
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Answer» During respiration, both energy and a gas known as carbon DIOXIDE are produced. When we breathe out, the carbon dioxide that is produced is RELEASED into the AIR. Plants such as trees, on the other hand, can TAKE in this carbon dioxide, which is unusable for humans, and use it to produce their own energy. |
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| 1732. |
Explain how we perceive objects as they are |
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Answer» Answer: The LENS present in our EYES forms a real and inverted image on the retina. The optic nerves carry this image from the retina to the brain. The brain then processes this info to generate clear and virtual IMAGES. That's how we PERCEIVE objects as they are. Explanation: Hope it helps you dear friend |
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| 1734. |
The representation of a substance by symbols is |
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Answer» Answer: A chemical equation is the SYMBOLIC representation of a chemical REACTION in the FORM of SYMBOLS and formulae, wherein the reactant ENTITIES are given on the left-hand side and the product entities on the right-hand side. |
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| 1736. |
Help me please its urgent |
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Answer» Answer: A 1) Carbon monoxide A 2)Carbon A 3) Latin A 4) Sea water A 5)Portable Water B=> 1) Immiscible mixture 2) animal excreta 3) water 4) has atomic no 2 5) halogen please mark it as brainliest |
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| 1737. |
What is ammonium chloride |
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Answer» Ammonium chloride is an inorganic compound with the formula NH₄Cl and a white crystalline salt that is highly soluble in water. Solutions of ammonium chloride are mildly acidic. Sal ammoniac is a NAME of the natural, mineralogical form of ammonium chloride. Formula: NH4Cl IUPAC ID: Ammonium chloride Molar mass: 53.491 g/mol Boiling point: 520 °C Melting point: 338 °C Soluble in: AMMONIA, Water, Methanol, Alcohol, Glycerol, Hydrazine Mark me as brainliest |
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| 1738. |
Does the subatomic particle have the properties of matter? |
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Answer» SUBATOMIC particle, ALSO called elementary particle, any of VARIOUS self-contained units of matter or ENERGY that are the fundamental constituents of all matter. Explanation: pls follow me and mark me as brainliest |
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| 1739. |
What is your mother's sister's son's daughter's grandmother's son become to you |
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| 1740. |
12An open beaker with some water was weighed. A small piece of sodium was weighed and carefully added to the waterin the beaker.It reacted vigorously.The beaker was weighed again.It was later found that the total mass of the beaker with the products was less than the sum of the mass of sodium andbeaker of water used for the reaction.Which among the following could explain this accurately?options Some metal atoms did not undergo reaction.20The mass of sodium was not equal to that of water.30Some sodium atoms were destroyed during the vigorous reaction.40The reaction involves evolution of a gas which escaped from the open beaker. |
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Answer» hi Explanation: IAM not UNDERSTANDING what U are ASKING |
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| 1741. |
A fizzy drink is what mixture |
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Answer» Answer: Soft drinks are made of DIFFERENT things, but are not all ONE chemical compound like water is. A soft drink is a mixture because it is made from: WaterSugarFlavoringsColoringsIt is possible to separate these things out of the mixture using PHYSICAL means Explanation: Mark me as brainliest |
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| 1742. |
Air is what mixture |
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Answer» Answer: Air: The mixture of gases that form the atmosphere of the Earth. By VOLUME, DRY air is composed of NITROGEN (78.09%), Oxygen (20.95%), argon (0.93%), carbon dioxide (0.03%), and SEVERAL trace gases. Water vapor varies between zero and 4% volume. Explanation: ☠☠☠☠ |
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| 1743. |
Find matchgluose mixture- |
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Answer» Explanation: |
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| 1744. |
Jad Ka samanarthi Shabd Hindi mein |
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Answer» Answer: जड़ का समानार्थी शब्द jad KA samaanaarthee shabd Root synonyms Explanation: |
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| 1745. |
By heating solid ammonium chloride the gas evolved isa. ammoniab. hydrogen chloridec. both ammonia and hydrogen chlorided. oxygen |
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Answer» c. both ammonia and HYDROGEN CHLORIDE if you find the Answer helful then please mark the answer as brainlist ONE and also follow me. |
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| 1746. |
________ was the first one to formulate the modern periodic table of elements |
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Answer» MENDELEEV is the answer............. |
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| 1747. |
Which gas is evolved in when the solid ammonium chloride is heated |
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Answer» Answer: NH4NO2 —> N2 + 2H2O. When a mixture of AMMONIUM chloride and sodium nitrite is HEATED INITIALLY by a process of double decomposition ammonium nitrite and sodium chloride are formed. Explanation: plz FOLLOW me and thank my answer plzzzzz |
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| 1748. |
Solid carbon dioxide is called _______ |
Answer» it is known as dry ICE......PLEASE mark me as BRAINLIEST and please follow me |
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| 1749. |
1 / 1 ATOMS AND MOLECULES ASSIGNMENTQ1. Fill In The Blanks1. During a chemical reaction, the sum of the _________ of the reactants and products remain unchanged.2. In a pure chemical compound, elements are always present in a ________ proportion by mass.3. Clusters of atoms that act as an ion are called __________ ions.4. In ionic compounds, the charge on each ion is used to determine the ________of the compound.5. The Avogadro constant _________ is defined as the number of atoms in exactly ________ of crbon-126. Mass of 1 mole of a substance is called its __________.7. The abbreviation used for length names of elements are termed as their _______.8. A chemical formula is also known as a ________.9. Those ions which are formed from single atoms are called _________.10. Ionic compounds are formed by the combination between ________ an ______.11. The valency of an ion is _________ to the charge on the ion.12. Mole is a link between the __________ and __________.13. The SI unit of amount of a substance is __________.Q2. Calculate the formula mass of each of the following and round your answer to the nearest 0.1 u. (a) NaHCO3 (b) K2Cr2O7 (c) (NH4)2CO3 (d) AI2 (SO4)3 (e) CuSO4.5H2O?Q3 (a) Give two symbols which have been derived from the "English names" of the elements. (b) Give two symbols which have been derived from the " Latin names" of the elements.Q4 i) Distinguish between an atom and a molecule. (ii) Differentiate between atom and ion.Q5. Write formulas for ionic compounds formed from: (a) Na and F (b) Na and O, (c) Mg and F (d) AI and CQ6. 10.0 g CaCO3 on heating gave 4.4 g of CO2 and 5.6 g of CaO. Show that these observations are in agreement with law of conservation of mass. |
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Answer» Answer: |
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| 1750. |
_________ possess some properties of metals and some properties of non-metals |
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Answer» physical property DIFFERENCES Between Metals And Non-metals MetalsNon-metalsThese are very HARD except sodiumThese are SOFT except diamondThese are malleable and ductileThese are brittle and can break down into piecesThese are shinyThese are non-lustrous except iodineElectropositive in natureElectronegative in nature |
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