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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.
| 58901. |
For what purpose slaked line is used??? |
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Answer» White washing Yes!!! U mean slaked lime ? |
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| 58902. |
How do Acids and Bases react with metals? |
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Answer» Their reaction is called neutralisation reaction which gives salt and water... By making salt and hydrogen |
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| 58903. |
What is stoma? |
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Answer» Tq Stomata are pores on the surface of leaves. Stomata are what the leaves use to breathe. Stomata take in gases like carbon dioxide and oxygen, and release water. They are located on bottom of the leaf so that the plant won\'t lose all of its moisture through evaporation in the sunlight. If they are direct contact with the sun then the water evaporate too fast from the plant and get dehydrate. |
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| 58904. |
Properties of quantization |
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| 58905. |
Reaction of respiration |
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Answer» It is a exothermic reaction I got it its C6H12O6+O2=CO2+H2O+ Heat energy |
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| 58906. |
How i get the solutions of class 12th |
| Answer» On internet | |
| 58907. |
What are the types of biotic components |
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Answer» Biotic factors or components are mainly referred to all the living things in the ecosystem. Their presence or their materials affect the composition of an ecosystem. These materials include organisms, interactions, parts, wastes and also their presence. Factors like disease, predation, and parasitism can also be considered as biotic. Well kal to sst ka paper hain ap science prepare kr rhe ho..kal ap ka science hain kya All the living things are type of biotic component..like all the living organism microorganisms bacteria etc |
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| 58908. |
What is fomula of acid |
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Answer» Acid+metal= salt+hydrogen gasFor eg :HCl+ Na=NaCl+ H2 Hmm aur yeah bhi likhna underline karke bfGzgegbshdhde |
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| 58909. |
Aqua solutions |
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| 58910. |
Why humanbody is called double circulatory? |
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Answer» In one time... Kyuki hamaari body me double time blood circulate hota hai.... oxygenated and deoxygenated |
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| 58911. |
What is effective nuclear charge? |
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| 58912. |
What are the example of oxidising agent and reducing agent |
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Answer» An oxidizing agent, or oxidant, gains electrons and is reduced\xa0in a chemical reaction. Examples of oxidizing agents include halogens, potassium nitrate, and nitric acid.\xa0A reducing agent, or reductant, loses electrons and is oxidized in a chemical reaction. Examples of reducing agents include the earth metals, formic acid, and sulfite compounds. Metals are the example of oxidizing agent and non metals are the example of reducing agent |
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| 58913. |
What is difference between radical and ion? |
| Answer» Radical ion is a ion | |
| 58914. |
Define center of reflection of light |
| Answer» Centre of Curvature: The centre of sphere; of which the reflecting surface of a spherical mirror is a part; is called the centre of curvature of the spherical mirror. Centre of curvature is not a part of spherical mirror rather it lies outside the mirror. Centre of curvature is denoted by letter ‘C’. | |
| 58915. |
...Paper kaisa gaya भाइयों / बहनो |
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| 58916. |
What are the products for chemical reaction of Barium hydroxide and Ammonium chloride? |
| Answer» BA(OH)2 + NHCL = BaCL2 + NH3 + H2O | |
| 58917. |
What are the major constituents of urine |
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Answer» Urine is an aqueous solution of greater than 95% water, with a minimum of these remaining constituents, in order of decreasing concentration:\tUrea 9.3 g/L.\tChloride 1.87 g/L.\tSodium 1.17 g/L.\tPotassium 0.750 g/L.\tCreatinine 0.670 g/L .\tOther dissolved ions, inorganic and organic compounds (proteins,\xa0hormones, metabolites).\xa0 Urea ....uric acid.. |
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| 58918. |
Which is the major constituents of urine |
| Answer» Urine is an aqueous solution of greater than 95% water, with a minimum of these remaining constituents, in order of decreasing concentration:\tUrea 9.3 g/L.\tChloride 1.87 g/L.\tSodium 1.17 g/L.\tPotassium 0.750 g/L.\tCreatinine 0.670 g/L .\tOther dissolved ions, inorganic and organic compounds (proteins,\xa0hormones, metabolites).\xa0 | |
| 58919. |
Define decomposition reaction |
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Answer» Those reaction in which the reactant breaks up or split up into two or more substances known as decomposition reaction.Ex-caco3=cao+co2 The reaction in which a compound breaks up into two or more simpler substances are known as decomposition reaction. These reactions are generally carried out by means of heat, light, electricity or catalysts.1) CaCO3 (s) ) {tex}\\;\\xrightarrow{Heat}{/tex} CaO(s) + CO2(g)2) 2 H2O(l) {tex}\\;\\xrightarrow{Electric\\;current}{/tex}2H2 (g) + O2(g)\xa0 It is a reaction in which a single reactant breaks down to give simpler productsEx. CaCo3 = Cao + Co2 |
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| 58920. |
Can virus attack unicellular organism |
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Answer» But unicellular not a host then how virus attack yes the virus can attack in cellular organism because it need host organism to live and a unicellular organism like bacteria can be a good host for it. YupAnd destroy it. |
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| 58921. |
in 2019-20 what is the exam pattern |
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| 58922. |
Why is CrO3 acidic in nature ? |
| Answer» Because it is acidic anhydride chromic acid.... | |
| 58923. |
What are aspects of maintaining processes ? |
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| 58924. |
What is control and cordination |
| Answer» The working together of various organs of the body of an organism in a proper manner to produce appropriate reaction to a stimulus is called coordination. Control & coordination in animals- takes place by (i) Nervous system and (ii) Endocrine system | |
| 58925. |
What happen when excess amount of acid produce in stomach and what you do for getting relief for it |
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Answer» Or taking baking soda...NaHCO3 Excess amount of acid can cause acidity in stomach and we can get relief by taking antacids.... |
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| 58926. |
Kya single displacement and double displacement reactions dono me precipitate ka formation hoga? |
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Answer» But, Fe and Cuso4 ke single displacement reaction me Cu precipitate banta hai No only in double displacement reaction precipitate is formed |
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| 58927. |
Is Cu a precipitate in the reaction of Cuso4 and Fe?? |
| Answer» Ya.maybe | |
| 58928. |
Why carbon dioxide is mostly transported dissolved in our body? |
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Answer» Exchange of gases takes place between the alveoli of lungs and the surrounding blood capillaries. The two main gases exchanged are oxygen and carbon-dioxide. Oxygen is absorbed by the blood capillaries from the lungs alveoli by diffusion while carbon-dioxide is absorbed by the lungs alveoli from blood capillaries by diffusion.\xa0Transport of oxygen and carbon-dioxide occurs with the help of respiratory pigment called hemoglobin.Hemoglobin, the iron containing respiratory pigment is a red colored pigment of blood, which has a very high affinity for oxygen. Hemoglobin though is purple colored but oxy-hemoglobin is of bright red color. Oxygen is transported from lungs to the body cells in the form of oxy-hemoglobin.Carbon-dioxide is transported from the body cell to the lungs in the forms of carboxy-hemoglobin, carbonic acid, bicarbonates of sodium and potassium. No |
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| 58929. |
,state the law of reflection of light at a plane surface |
| Answer» Laws of reflection of light:\tThe normal line, the incident ray and the reflected ray will be on the same plane.\tThe angle of incidence is always equal to the angle of reflection of light. | |
| 58930. |
Why silver polished behind the glass of a mirror it can any polish like of a gold and aluminium |
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Answer» I think your ques. is " why silver is used for polishing in mirror not gold and aluminium"? ,If it is so then silver is the best reflector of light ,it reflects 98% of light falling on it. Que. Improper...?..plz write it correctly.. |
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| 58931. |
Why it is nacl but mgcl2 |
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Answer» *ap alok ji Plz ask ques clearly...can\'t understood |
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| 58932. |
First chapter chemical formulas |
| Answer» Plz check the notes provided on this app.... | |
| 58933. |
Name 2 natural and antioxidants |
| Answer» Natural antioxidants which are typically added to fat and oil containing sustenances to avoid rancidity are:\xa0- Vitamin E\xa0- Vitamin C\xa0Vitamin E is a fat-dissolvable supplement found in numerous foods. In the body, it goes about as a cancer prevention agent, shielding cells from the harm caused by free radicals.\xa0Vitamin C (otherwise called ascorbic acid) is plentiful in vegetables and fruits. | |
| 58934. |
With help of a chemical equation explain corrosion of iron, silver, aluminium, copper. |
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Answer» Copper Corrosion:When copper is exposed to air for a longer time , then copper reacts with Carbon Dioxide and water of air to form a green coating of basic copper carbonate on the surface of the object.The formation of this green coating on the surface of a copper object corrodes it.Green coating of basic copper carbonate is a mixture of copper carbonate and copper hydroxide , CuCO3. Cu (OH)2.Tarnishing Of Silver :The black coatings on silver .4Ag +2H2S +O2 -----------> 2Ag2S + 2H2O When copper or silver combines with oxygen, the process is known as corrosion or oxidation.\xa0\xa0When copper reacts with oxygen, then it produces copper oxide. The chemical equation of this reaction is 4Cu + O2 = 2Cu2O, and forms Copper Oxide.\xa0Silver objects corrode slowly in the air due to the presence of H2S in the air. The chemical equation of this reaction is 2Ag + O2 = Ag2O. |
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| 58935. |
Why magnesium ribbon should be cleaned before burning in air? |
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Answer» \xa0Magnesium ribbon is a very reactive metal. When stored it reacts with oxygen to form a layer of magnesium oxide on its surface. This layer of magnesium oxide being a stable compound prevents further reaction of magnesium with oxygen. The magnesium is cleaned before burning in air to remove this layer so that the metal can be exposed to air properly. To remove the protective layer of magnesium oxide... |
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| 58936. |
What is an atom? |
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Answer» The atom is the smallest particles of elements which can take part in chemical reaction An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small; typical sizes are around 100 picometers. Wiki It is the smallest particle of an element. |
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| 58937. |
Balance equation Ca3P2 + HCl |
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Answer» U r ryt priya.. It\'s incomplete I think this is incomplete question. |
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| 58938. |
NH4NO2 = N2 + H2O Balance this equation |
| Answer» Nh4no2=n2+2h2o | |
| 58939. |
Is science book changed for 2019 to 2020 cbse for 10 |
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Answer» Yes but we use old book only don\'t worry NO |
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| 58940. |
Explain 5r principles |
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Answer» The\xa05 R\'s\xa0– Refuse, Reduce, Reuse, Repurpose, Recycle. Refuse,Reduce- We must reduce the use of resources as much as possible and save them for the future generation. Reducing the usage is a method of conservation of resources.Reuse- Resources can be reused wherever possible. We need not produce resources on large scale which may lead to exploitation of natural resources. Instead we can reuse them.Recycle- Resources can be recycled wherever possible so that they can be used again and again.Restore- We can restore resources into their original state, wherever possible.Refuse is to say no to things people offer you that you don’t need, that you never even asked for. Refuse to buy products that can harm you, your family and the environment. Ek or google se dekh lena? Reduce reuse recycle recover...... |
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| 58941. |
The teeth has density fillup |
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Answer» Sry, bt yur question is nt clear ??? No solutions please answer me |
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| 58942. |
living organism that cannot make their own food are called |
| Answer» Heterotrophs.... | |
| 58943. |
SO2 + K2Cr2O7 |
| Answer» Did you mean SO2 + K2Cr2O7 = SCr2O7 + K2O ?Balanced equation:SO2 + K2Cr2O7 = SCr2O7 + K2O2Reaction type: double replacement | |
| 58944. |
What is free electron |
| Answer» The valence electrons of atoms of metals who are free to move in a metal are called free electrons. | |
| 58945. |
Electric current always from high to low pressure or low to high pressure |
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Answer» Actually, electrons move from high potential difference to low potential difference. But conventional current is in just opposite direction. High voltage ( positive ) to low voltage (negative )... |
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| 58946. |
Define physical change |
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Answer» The no new substance is formed is called physical change.ex-water to ice A change which occurs without change in chemical nature of the substance is called a physical change.... example : water to ice |
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| 58947. |
Do all heterotrophs organisms take food in same manner |
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| 58948. |
Ok guys 9 ke ass passmilte h..sb anaa..gungun u bhi |
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| 58949. |
Kl mera entrance exam hai 11th ke liye...please tell me important topics of science... |
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| 58950. |
How the undigested food come out from Amoeba? |
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Answer» Amoeba takes in its food through this process. Initially, it pushes out its pseudopodia so that it can encircle the food. After this, it engulfs the food, thus forming a bag-like structure called food vacuole. The process is known as “phagocytosis”. Through pseudopodia... The egestion takes place by exocytosis..... |
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