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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.
| 57851. |
Introduction of carbon |
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| 57852. |
Why should curd and sower product are not keept in brass vasal |
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Answer» Curd contains lactic acid and brass is a alloy so if we keep curd in a brass utensil a chemical reaction takes place between acid and alloy of metal and the curd thus is not suitable for consumption Give answer |
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| 57853. |
Name some Strong Acids And Bases ? |
| Answer» Strong acid- hydrochloric acid, sulphuric acid, nitric acid Strong base-sodiumhydroxide, magnesium hydroxide | |
| 57854. |
Explain different way glucose is broken down |
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| 57855. |
HOW THE WOMAN GET PREGNANET??DESCRIBE THE PROCESS |
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| 57856. |
what is conjuate acid ? |
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Answer» When hydrogen ion is added to a Base,then the Base is a conjugate Base. Bouncer |
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| 57857. |
what is conjuate base ? |
| Answer» Pata nahi | |
| 57858. |
How does the cteation of variation in a species promote survival |
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| 57859. |
what is radicals ? |
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| 57860. |
what is ionisation ? |
| Answer» Ionisation is the additional or removal of an electon to form ion | |
| 57861. |
what do you mean by complete ionisation ? |
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Answer» Mere anubhav s, Wholly addition or removal of electron to form ions is known as complete ionisation, not partially. ??? No idea |
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| 57862. |
Explain excretiory system______ |
| Answer» Excretory system is a type of system through waste or un digested foods are thrown out from our body by the coordination of some excretory organs. | |
| 57863. |
Why plants do not react to the stimulus quickly as animals? |
| Answer» Plants are able to detect and respond to light, gravity, changes in temperature, chemicals, and even touch. Unlike animals, plants do not have nerves or muscles, so they cannot move very fast. ... The slow movements that plants make towards or away from a stimulus, such as light, are known as tropisms. | |
| 57864. |
What is electric potential difference |
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Answer» It is the work done to carry a unit positive charge from infinity to a point is electric potential and work done to carry a unit positive charge from one point to another is known as potential difference. Plants are able to detect and respond to light, gravity, changes in temperature, chemicals, and even touch. Unlike animals, plants do not have nerves or muscles, so they cannot move very fast. ... The slow movements that plants make towards or away from a stimulus, such as light, are known as tropisms. |
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| 57865. |
Why graphite is good conductor of electricity but diamond isn\'t ? If both are the form of carbon. |
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Answer» Graphite can conduct electricity because of the delocalised (free) electrons in its structure. These arise because each carbon atom is only bonded to 3 other carbon atoms. ... However, in diamond, all 4 outer electrons on each carbon atom are used in covalent bonding, so there are no delocalised electrons. Because graphite contains free electrons so , electricity pass easily.But diamond dont contain free electron both are carbon components,and both non metal. Ha bhai |
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| 57866. |
Self respiration |
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| 57867. |
Describe ohms law. |
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Answer» At costant temperature...Potential difference(V) is directly propotional to Current(I) V is directly propotional to I Ohm\'s law states that in a current carry conductor current is always directly proportional to the potential difference |
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| 57868. |
Which compond is more acidic ? |
| Answer» The most acidic compound in the world is fluroantimonic | |
| 57869. |
Is baking soda is good for health?is this cause any side effects |
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| 57870. |
Board paper of 2001to2018 |
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| 57871. |
What happen if ammeter placed in parallel connectuon? |
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| 57872. |
Explain why voltmeteralways has a high resistance plzz explain clearly |
| Answer» Voltmeters need to compare two different points and their voltages. ... (The voltmeter should have very high resistance so that it doesn\'t allow current to flow through it and thus change the currents in the rest of the circuit.) | |
| 57873. |
What are redox and reduction reaction |
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Answer» The reaction in which both oxidation and reduction takes place is called as redox reaction REDUCTION REACTION - It includes (1) Gain of hydrogen (2) lose of oxygen (3) gain of electrons.... REDOX REACTION - in this reaction oxidation and reduction takes place simultaneously.Ex- Zn + CuSO4-->ZnSO4+Cu here Zn is oxidised and CuSO4 is reduced |
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| 57874. |
What is concave lens |
| Answer» The lens which is thinner at the centre than at the edges is called a concave or diverging lens. It diverges a beam of light on refraction through it or we can say a ray of light which is incident on the surface of the mirror, appears to converge after refraction. Hence, it has a virtual focus. | |
| 57875. |
Definition of acid and bace |
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Answer» Acid is chemical which increase the concentration of hydronium in water.Base is another chemical which increase the concentration of hydoxide ions in water ACID:-Those substances which depends on the concentration of H+ ions when dissolved in water and form hydronium ion(H3O+) with water.EX:-HCl,H2SO4,etc....BASE:-Those substances which depends on the concentration of OH- ions when dissolved in water.EX:-NaOH,KOH,etc... AnswerAcid - The substance which realese more OH minus ions are called acidsBase - The substance which realese less amount of OH minus ions. ACIDS - the substance which produce h+ ions when dissolved in their aqueous solution is known as acid . It includes HNO3,HCl,H2SO4 etc,....... ........ ..... . BASES - the substance which produce oh- ions when dissolved in their aqueous solution is know as base It includes NaOH Acids are sour and turn blue litmus red. Bases are bitter and turn red litmus blue. Acid are those substance which contain h+ ions or bases are those substances which contain oh- ions when they disslove in water. |
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| 57876. |
Why dry HCl do not give litmus test? |
| Answer» We know that the colour of the litmus is changed by H+ ions of an acid. Dry HCl does not dissociate to give H+ \xa0ions. It is only in the aqueous that an acid dissociate to give ions. Since in this case, neither HCL is in aqueous form nor is the litmus paper wet, so the colour of litmus paper does not change. | |
| 57877. |
What is element or compound |
| Answer» Element is a substance which is not broken down by chemical change, its smallest partical is atom | |
| 57878. |
What is prepherial nervous system |
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| 57879. |
list four condition required for efficient gas exchange in an oraganism. |
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| 57880. |
What is ova and how it differs from sperms??? |
| Answer» Ova is female gamete and sperm is male gamate | |
| 57881. |
Defect of vision and their corrections? Explain ? |
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| 57882. |
What is amoeba?? |
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Answer» In amoeba the food is transported by diffusion It is unicellular and hollozoic organism It is a unicellular organism Amoeba is an aquatic protozoan animal Amoeba is an unicellular organism A unicellular organism An unicellular animal |
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| 57883. |
Advantages and disadvantage of series conection |
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| 57884. |
Write the component of biogas |
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| 57885. |
Tell me the reactivity series |
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Answer» K.Na.Ca.Mg.Al.C.Zn.Fe.Pb.H.Cu.Hg.Ag.Au. Pt...we can learn it like please stop calling me a cute zebra I like Hindustan Cu, Hg, Ag,Au,Pt. We can learn this easily by this?Kedar nath baba ka maali aloo Zara feeke nikame se pakata hai kar hath aage apna aur peet KNaBaCaMgAlZnFeNiSnPbHCuHg AgAu Pt K.Na.Ca.Mg.Al.Zn.Fe.Pb.Cu.Ag.Au |
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| 57886. |
Which device convert electric energy into heat energy |
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Answer» Nichrome wire are present in this devices which converts electric energy into heat energy. Electric heaters Electric hearers |
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| 57887. |
why we have two eyes for vision |
| Answer» Because it gives 180 degree angle of vision | |
| 57888. |
Salt made of non metallic element is ......... (1) NaCl (2) NH4Cl (3) AIN (4) MgCl2. |
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| 57889. |
How many element in chemistry |
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Answer» 115 118 elements 118 elements are there in chemistry |
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| 57890. |
What is the percentage of methane in biogas?? |
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Answer» Thanks Deepak 75 Sry 50%-65% 50%-60% |
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| 57891. |
Example of phototropism |
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Answer» The movement of plant part in whichis response to the light is called phototropism Sunflower |
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| 57892. |
What is meant by quanfication of charge |
| Answer» Many amount of electron | |
| 57893. |
Al2(so4)+Naoh=Al(oh)3+na2so4 |
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| 57894. |
If v=7 V, i=21A,find "r=?" |
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Answer» 0.333............ 0.33 0.333approax |
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| 57895. |
What would be the consequence of haemoglobin deficiency in human body? |
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| 57896. |
Why do ammeter likely to be burnt out if connected in parallel? |
| Answer» An ammeter has very low resistance and draws very high current when connected in parallel thus it likely to be burn out | |
| 57897. |
What is the thing which used to protect from aids and un wanted pregnacies |
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Answer» Condom Condoms |
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| 57898. |
What is sytol and dystol |
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Answer» Is sytole given in ncert and where systole. The period during which the chambers of the heart (the atria and the ventricles) are contracting. Atrial systole, in which blood passes down into the ventricles, precedes the more powerful ventricular systole in which blood is driven into the arteries. Systole alternates with a relaxing period called DIASTOLE. |
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| 57899. |
How does antacids work |
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Answer» Thanks Sodium hydrogencarbonate is an essential ingredient in antacids. It is a base because it neutralises excess acid in the stomach and provides relief . As antacids are basic in nature so they react with acids making them neutral and gives us relief from acidity. |
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| 57900. |
Given textbook solutions |
| Answer» Atom can neither be created and nor be destroy | |