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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.
| 51551. |
What is fat |
| Answer» Fat is one among the three macro nutrients which provide energy for the proper functioning of the metabolic system. It is an essential nutrient, which is necessary to keep us healthy, both saturated (bad fat) and unsaturated (good fat) fats are an essential part of our daily diet. Both saturated and unsaturated fats are involved in the foods which we eat. | |
| 51552. |
Define compounds,ions,valency..?? |
| Answer» Valency: The outermost electron shell of an atom is called valence shell. The electrons present in outermost shell of an atom are called as valenceIons: An ion is a positively or negatively charged atom or group or atom. For Ex: Sodium ion, Magnesium ion, magnesium ion, chloride ion, oxide ion etc. There are two types of ions:1) Cation:A positively charged ion is known as cation. A cation is formed by loss of one or more electrons by an atom.2) Anion:A negatively charged ion is known as anion.An anion is formed by the gain of one or more electrons by an atom. An anion is formed by the gain of one or more electrons by an atom.Compound: A compound is a substance formed when two or more chemical elements are chemically bonded together. For example: Pure water is a compound made from two elements - hydrogen and oxygen. | |
| 51553. |
difference between oxidizing agent and reducing agent |
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Answer» The substance which either gives oxygen or removes hydrogen in an oxidation reaction, is known as oxidizing agent and the substance which either gives hydrogen and removes oxygen in an reduction reaction, is known as reducing agent The substance which either gives oxygen or removes hydrogen in an oxidation reaction, is known as oxidizing agent and the substance which either gives hydrogen or re |
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| 51554. |
Hardest part of our body |
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Answer» Enamel Teeth |
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| 51555. |
What are the types of chemical reactions? For class 10 |
| Answer» There are five type of chemical reaction : combination reaction, decomposition reaction, displacement reaction, double displacement reaction, oxidation and reduction reaction for the class 10 | |
| 51556. |
Why chlorophyll is necessary for photosynthesis |
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Answer» chlorophyll tap the sun light Because it absorbs light energy from sun and help in Photosynthesis |
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| 51557. |
How will you show that chlorophyll is necessary for photosynthesis |
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Answer» By the experiment Because it absorbs light from sun and help to making food for plant |
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| 51558. |
What is aorta and what is function of aorta? |
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| 51559. |
Which is the largest arteries? |
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Answer» Aorta Aorta is the largest arteries. |
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| 51560. |
What type of blood is carried by vein and arteries? |
| Answer» The arteries carry oxygenated blood except pulmonary arteries(carry deoxgenated blood) and vein carry deoxgenated blood except pulmonary vein(carry oxygenated blood). | |
| 51561. |
Why do we have so mush pain after doing so much work |
| Answer» As when we do work our muscles get weaker and our energy get reduces and cause dehydration | |
| 51562. |
What is NADPH and what is its function |
| Answer» It is a organ in plants which stores Hydrogen when light reaction take place and this hydrogen is useful in dark reaction | |
| 51563. |
Name two respiratory organs of higher plants??? |
| Answer» | |
| 51564. |
Complete and balanced the following chemical equation.1. CaCO3 +HCl= |
| Answer» Bhai que toh pura likh | |
| 51565. |
Period of girls in how many days in 1month |
| Answer» 3 to 8 days | |
| 51566. |
What is the respiratory pigment? |
| Answer» Haemoglobin present in RBC | |
| 51567. |
How can we calculate volt and ammeter |
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Answer» ??? Ok thnq but j ki jagah fir q likho V=w/j. Where v is potential difference Where w =workdone Where q =quantity of charge moved??????????????????? |
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| 51568. |
Difference between systole and distole |
| Answer» Blood pressure have two types - Systolic pressure and diastolic pressure | |
| 51569. |
Why current is known as scalar quantity ? |
| Answer» Because current has only magnitude | |
| 51570. |
Find number of electrons in 1.6 ampere current in 1 second |
| Answer» 1 ampere current flows through a conductor ,when a charge of one coulomb flows through it in 1 second.Number of electrons in one coulomb of charge = 1/1.6 x 10-19 = 6.25 x 1018Thus 6.25 x 1018 electrons flowing per second constitute 1 ampere current. | |
| 51571. |
What is bases |
| Answer» Base is bitter in taste and feels soapy on touch. A base turns red litmus paper blue. Sodium hydroxide (caustic soda), calcium hydroxide, sodium carbonate (washing soda), lime (Calcium oxide), potassium hydroxide (caustic potash), etc. are examples of base.Types of base: Base can be divided in two types – Water soluble and water insoluble.The ionic salt of alkali and alkaline earth metals are soluble in water. These are also known as alkali. For example – sodium hydroxide, magnesium hydroxide, calcium hydroxide, etc. Alkali is considered as strong base. | |
| 51572. |
What happens chemically when quicklime is addad to water? |
| Answer» It will convert into slacked lime | |
| 51573. |
how we can predict products of chemical reaction |
| Answer» | |
| 51574. |
Explain the decomposition of zinc carbonate |
| Answer» Zinc carbonate, ZnCO3, undergoes thermal decomposition to form zinc oxide, ZnO, a solid that is white in color when cold and yellow in color when hot, and carbon dioxide gas, CO2ZnCO3(s) {tex}\\xrightarrow\\triangle{/tex} ZnO(s )+ CO2(g) ↑This reaction is characteristic to metal carbonates, which decompose when heated to form the oxide of the metal and carbon dioxide gas. | |
| 51575. |
Ncert section 1.37 |
| Answer» | |
| 51576. |
What is decomposition reaction? Explain with the help of an example? |
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Answer» Single reactant breaks into a simpler products is called decomposition reaction CaCO3 gives CaO+ CO2 When one compound is split into 2different elements we say it as decomposition reaction. AB-A+B |
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| 51577. |
What is the atomicity of Cl |
| Answer» -1 | |
| 51578. |
Where stomata is present on brood leave? |
| Answer» In cells | |
| 51579. |
When dilute UCL is added to zinc pieces taken in a test tube what will happen |
| Answer» | |
| 51580. |
Example of rancidity |
| Answer» Oil becomes rancid due to decomposition of fats it contains or sometimes milk becomes rancid due to not heating it in humid temperature,etc. | |
| 51581. |
Why we need to study about electricity... |
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Answer» For increasing our thinking level .I think electricity is favourite chapter for boys Because cbse chahata ha Hume jhatka Dene S3 pahle Rhoda tips de de Bhai SB kuch syllabus main hai Because it is given in syllabus |
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| 51582. |
why does the colour of copper sulphate solution change when an iron is dipped in it |
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Answer» In this reaction, iron being more reactive has displaced or removed copper from copper sulphate solution thus changing it\'s colour. This reaction is known as displacement reaction Because copper is more reactive than iron |
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| 51583. |
Characterstics of living things |
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Answer» U can see yourself u will find answer I think growth or development is the major characterstic of living things ? |
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| 51584. |
Why light has dual character |
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| 51585. |
Which energy is used by living organisms to perform vital life processes? |
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| 51586. |
how we do balance chemical equation |
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| 51587. |
How could hydrogen be a metal or non metal |
| Answer» It have both metalic and nonmetallic property | |
| 51588. |
What is most power full in copper or iron? |
| Answer» Iron is more powerful | |
| 51589. |
What is difference between chemical reaction or chemical equation? |
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Answer» Chemical reaction is a process in which the original substance loses its identity and nature and forms a new substance with new chemical properties whereas chemical equation is the short hand representation of a chemical reaction with the help of symbols and formulae. Chemical reactions are reaction in which a new with substance is formed Chemical reaction is permanent changeHeat is involved in chi call reaction Aur physical me ulta kar do chemical reaction ka Thanks but this is not correct so sorry,?? Chemical reaction is a change that results in one or more new substance and it\'s also changes composition Chemical equations is the reactants are written on the left - hand side (LHS) with a plus sign (+)between them. Similarly, products are written on the right -hand side (RHS) with a plus sign (+)between them. |
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| 51590. |
2x^+5x-12 |
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| 51591. |
Characteristics of chemical equation |
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| 51592. |
Anyone learn all the syallbus of physics class 9. |
| Answer» | |
| 51593. |
What is ioniscompoundexcvvvv |
| Answer» Ionic Compounds: The phenomenon by which the compounds are formed by gaining or losing of electrons is defined as Ionic Compounds.Ionic compounds are solids and are somewhat hard because of the strong force of attraction between the positive and negative ions. These compounds are generally brittle and break into pieces when pressure is applied. Ionic compounds have high melting and boiling points. This is because a considerable amount of energy is required to break the strong inter-ionic attraction. | |
| 51594. |
Write the equation for the process of breakdown of glucose in a cell |
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Answer» C6H1206+6o2=6CO2+6H2O C6H12O6 |
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| 51595. |
Similarities between pepsin and trypsin |
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Answer» Both are enzymes which plays a crucial role in the digestion of protein... Both digest protiens |
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| 51596. |
How chloride of lime differs chemically from calcium chloride |
| Answer» Chloride of lime refers to calcium hypochlorite Ca(ClO)2 while calcium chloride is CaCl2. Calcium hypochlorite is highly alkaline in nature while calcium chloride is neutral in nature.Chemically chloride of lime is known as calcium oxychloride. Calcium chloride is an ionic compound of calcium and chlorine. | |
| 51597. |
What is disadvantages of series connection |
| Answer» Disadvantages of Series connection :-\tIf one electrical appliance stops working due to some defect , than all other appliance also stop working.\tAll electrical appliances have only one switch due to which they cannot turned on or off separately.\tThe appliances do not get same voltage as that of the power supply line .\tThe overall resistance of the circuit increases too much due to which the current from power supply is low. | |
| 51598. |
But how could hydrogen be a mellatoid? |
| Answer» All the gases are non metal hydrogen is non metal by reading your question i was also confused | |
| 51599. |
How could hydrogen have both metal and non metal properties.does it means that it is mellatoid? |
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Answer» Hydrogen can lose electrons and can become cation like metals and it can gain electrons like non-metal. Hydrogen is a mettaloid and metalloid have both properties of metal and non metal |
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| 51600. |
Please give classification of blood. |
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Answer» PlasmaWBC(leucocytes) ------2typesA) agranulocytes. B) granulocyyes 1)monocytes. 1)basophills 2)lymphocytes. 2) eosinophils 3) neutrophillsRBC(erythrocytes)Platelets(thrombocytes) Plasma , RBC , WBC and platelets |
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