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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.
| 67101. |
Black coating on silver a-- write the balanced equation occursb-- name of black substance |
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Answer» Ag+H2S-------------------Ag2S+H2 Silver sulphide |
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| 67102. |
Describe an activity to show that acetic acid is weak acid and HCL is a strong acid |
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Answer» By using universal indicator Use ph paper it wil show you the strength of them. |
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| 67103. |
What is the work of apendex in our body? |
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Answer» Normally, the appendix sits in the lower right abdomen. The function of the appendix is unknown. One theory is that the appendix acts as a storehouse for good bacteria, “rebooting” the digestive system after diarrheal illnesses. Other experts believe the appendix is just a useless remnant from our evolutionary past. It offenly acts as the storehouse... |
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| 67104. |
The light come from sun it passes the space and come in earth then why there is dark in space?? |
| Answer» Because in space no atmosphere, partical and mist to scatter the light so it see black | |
| 67105. |
What is STDS |
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Answer» They are sexually transmitted diseases which spread due to sexual comtact.For ex,aids,gonorrhea,warts ,syphilis. STDs are sexually transmitted diseases |
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| 67106. |
How to take HSC in screw gauge |
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| 67107. |
Difference between anologous homologous organs. |
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Answer» Homologous organs have the same basic structure but perform different functions e.g. the forelimb of a frog and a human.Analogous organs have different structures but perform similar functions e.g. wings of insects and birds. Homologous . These are the organs have basic structural plan but different there function eg forlimb of horse and the paw of cat , Analogous organs . These are the organs have different basic structural plan but same function eg wings of bird and wings of bat |
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| 67108. |
How was vinegar made |
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Answer» Sugar is converted into alcohol, which is then fermented into vinegar. Not all acetic acids are vinegar, although all vinegars are made from acetic acid. When creating a fruit-based vinegar, wild yeasts are added to convert the sugars into alcohol. Acetobacter aceti is the bacteria used to create vinegar from alcohol. 5-7% of acetic acid in water |
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| 67109. |
Why cannot fertilization take place in flowers if pollination dose not take plzce |
| Answer» Fertilization takes place after pollination bcoz before the meeging of male and female gamete zygote cannot be formed | |
| 67110. |
What is a salenoid |
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Answer» Solenoid is a coil consisting of large number of circular turns of insulated copper wire and it is closely wrapped. Salenoid is a circular coil wounded in the shape of a cylinder with many circular turns |
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| 67111. |
A muscel is called pacemaker of heart name |
| Answer» Why | |
| 67112. |
experiment ph |
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| 67113. |
Name a liquid metal |
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Answer» Mercury What is correct answer Mercury is not a liquid metal at room temperature Mercury |
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| 67114. |
Name two devices in which electric motor are used |
| Answer» Electric motors are used in:\tWater pumps\tElectric fans\tElectric mixers\tWashing machines e.t.c | |
| 67115. |
What is the change in colour when methyl orange is added to acid and base respectively |
| Answer» Methyl orange and phenolphthalein use as indicator. Methyl orange is originally orange in colour. It turns into red with acid and turns into yellow with base. | |
| 67116. |
IUPAC name of ethyl acetate? |
| Answer» Ethyl ETHANOATE | |
| 67117. |
Define renal artery? |
| Answer» Renal refers to anything related to the kidneys. Renal arteries carry blood from the heart to the kidneys. They branch directly from the aorta (the main artery coming off the heart) on either side and extend to each kidney. These arteries take a very large volume of blood to the kidneys to be filtered. | |
| 67118. |
How it is possible to have half molecule of water in POP(Plaster Of Paris) ? |
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| 67119. |
Explain the sexual reproduction between male and female |
| Answer» Sexual reproduction is a general and fundamental mode of reproducing their young ones in animals, humans, and plants. Compared to asexual reproduction, sexual reproduction is lengthy and more complex. An organism that follows sexual reproduction has the specific reproductive organs. Both male and female have a different set of reproductive organs in their respective systems.The male reproductive organs are located in the lower abdomen around the pelvic region. The major function of the male reproductive organs is to deliver sperm for fertilization. The male reproductive system is mainly composed of:\t*******– A small muscular sac-like organ which is located below and behind the *****. It consists of the testes and is mainly involved in maintaining the temperature required for the of sperm production.\tTestes – It is also called as testicles. They are a pair of oval-shaped organs which are mainly responsible for the sperm production and synthesis of testosterone- male hormones.\t*****– It is the primary sexual organ which serves as both reproductive organ as well as excretory organ and used for the purpose of sexual intercourse. It is a cylindrical tube-like organ with a small opening at the top and is extremely sensitive as it becomes vertical when a person is sexually aroused. Semen, containing sperm, is ejaculated from the opening at the top when the person reaches sexual climax.\tUrethra– A narrow tube-like structure that conducts urine and semen from the urinary bladder to the *****.\tVas Deferens– It is a muscular tube that carries mature sperm produced in the testes to the urethra.The female reproductive organs are located near the lateral walls of the pelvic cavity which consists of the following major organs:\tOvaries– They is a pair of organs which are mainly responsible for the production and storage of ovum, or egg, which are the *** gametes in a female.\tUterus– It is commonly known as the womb. It is a pear-shaped muscular bag-like organ with a strong muscular lining that holds the baby after fertilization. The uterus is referred as the site for the embryo development as it protects the fertilized ovum and holds it till the baby is mature enough for birth.\tCervix– A cylinder ring-shaped tissue which is composed mainly of fibromuscular tissue. It is located at the lowermost portion of the uterus and is involved in connecting the uterus and the ******.\t******– – The primary sexual organ which serves as both excretory organ as well as reproductive organ. It is a muscular and tubular part of the female genital tract that opens outside the body and the opening of the ****** is called the vulva, which also includes the ********, *****, and urethra. The ****** connects cervix to the external female body parts and it is the path for ***** during coitus as well as a fetus during delivery. | |
| 67120. |
what is the difference between reflex action and involuntary/autonomicaction |
| Answer» \tReflex actionsInvoluntary actions1. Rapid automatic responses to a stimulus without the conscious involvement of the brain1. Occurs without the conscious choice of an organism2. Controlled by spinal cord2. Controlled by mid brain or medulla oblongata3. Very quick and instantaneous3. Relatively slower4. May involve any muscle or a gland4. Involves only smooth muscles\t\xa0 | |
| 67121. |
Differences between dominant and aquired trai. |
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| 67122. |
Sodium Bicarbonate is a salt . is am I right |
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Answer» The chemical name of baking soda is sodium hydrogen carbonate (NaHCO3 ) or sodium bicarbonate. Bread soda, cooking soda, bicarbonate of soda, sodium bicarb, bicarb of soda or simply bicarb, etc. are some other names of baking soda.Yes, Sodium bicarbonate is a salt. It is salt but show basic in nature. is am right Yes Corbonate salt |
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| 67123. |
IUPAC name of ethyl acetate |
| Answer» Ethyl ETHANOATE is the IUPAC name of CH3COOHC2H5 or Ethyl acetate | |
| 67124. |
State function of artery and pulmonary artery |
| Answer» Arteries are the blood vessels that carry blood away from the heart, where it branches into even smaller vessels. Finally, the smallest arteries, called arterioles are further branched into small capillaries, where the exchange of all the nutrients and other waste molecules are carried out.Pulmonary arteries originate from pulmonary trunk towards right ventricle of the human heart and present beneath the aorta. Pulmonary artery consists of two parts. One goes in the right lung and the other towards the left lung. It is the only artery that carries deoxygenated blood from the heart to the lungs. | |
| 67125. |
Generally stomta opens during?when and which situation |
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Answer» During Transpiration Exchange of gases |
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| 67126. |
Difference between Artery and veins |
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Answer» \tARTERIESVEINSThe pure, oxygenated blood, rich in nutrients are carried\xa0by the Arteries.The impure, deoxygenated blood, rich in waste materials is carried\xa0by the\xa0Veins.Arteries walls are rigid, thicker and highly muscular.Veins walls are thin and collapsible walls.They are deeply situated within the body.They are superficial, peripherally located closer to the skin.Arteries are red in color.Veins are blue in color.Arteries carries blood away from the heart to various parts of the body.Veins carry blood from the various parts of the body towards the heart.\t Arteries have thick elastic muscular walls and veins have thin non elastic less muscular walls. Arteries carry oxygenated blood away from the heart to the body and veins carry deoxygenated blood away from the body to the heart |
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| 67127. |
Name two metals which react violently with cold water |
| Answer» Sodium and potassium | |
| 67128. |
Name the gases which had replaced CFCs |
| Answer» \tChloro Floro Carbons are one of the most dangerous gases present in the atmosphere.\tThey are the main reason for the depletion of ozone layer but now a days there are two other gases that are replacing the Chloro floro carbons.\tThey are carbon dioxide and methane. | |
| 67129. |
Can a plane mirror form a real image? |
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Answer» Never......???? \tReal image can only be formed when the reflected rays converge.\tFor plane mirrors it is not possible.\tHowever if the reflected rays are converged it can form a real image.\tConsider, a source of light at infinity (say sun) and plane mirror is very small in size, its reflected image will show a circular bright spot (image of sun) on the screen. No |
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| 67130. |
What would be the possible consequences when micropyle is blocked |
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Answer» Seed will not germinate, in that case seeds are lightly boiled to open the micropore without damaging the endosperm and then sown in pots . No fertilization Seed will not germinate |
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| 67131. |
What is importance of micropyle |
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Answer» (i) When soaked in water, the seeds absorb water mainly through the micropyle and make it available to the embryo for germination.(ii) It helps in diffusion of respiratory gases for the growing embryo. 1.when soaked seeds in water, the seeds absorb water mainly through the micropyle and make it available to the embryo for germination.............2.It helps in diffusion of respiratory gases for the growing embryo........... |
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| 67132. |
Solution of (sample paper 1wala)of science question no 26 explanation? |
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Answer» I am asking explanation (answer jo diya hai samaj ke bahar hai)☹ Hey sample paper meij solution bhi dia hoga i mean answer dia he dekh lo |
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| 67133. |
What is slaked and |
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Answer» Burning (calcination) converts them into the highly caustic material quicklime (calcium oxide) and, through subsequent addition of water, into the less caustic (but still strongly alkaline) slaked lime or hydrated lime (calcium hydroxide, Ca(OH)2), the process of which is called slaking of lime.Lime (material) And what?? |
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| 67134. |
Magnification of concave mirror is positve or negative |
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Answer» Negative Can be both Positive if object between f and pNegative for res Negative Negative(-)???????? Negative |
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| 67135. |
Rainbow |
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Answer» Rainbow is an arch of seven colour. Because, in my sense, there, is no question as "rainbow " ,......agar apko pata hai to answer de do...........?? why you say the question is not complet yes |
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| 67136. |
Describe various path of glucose breakdown in organism |
| Answer» ⑴ In presence of oxygen : - Breaking down of glucose into pyruvate takes place in Mitochondria of a cell.- End products are CO₂ , H₂O and energy.⑵ In insufficient presence of oxygen :- In muscle cells, due to insufficient presence of oxygen the cells undergoes anaerobic respiration.- End products are Lactic acid and lot amount of energy.⑶ In absence of Oxygen :- In absence of Oxygen, glucose breakdown into pyruvate in cytoplasm only.- End product are Ethanol, and small amount of energy.HOPE IT WILL HELP YOU ?? | |
| 67137. |
Why the spectrum is not view in glass slab give reason |
| Answer» Because glass spab acts as teo jointed prisms the newtons experiment stated that if two prisms are joined upright and downward in contact they get parallel facec which recombinates the dispersed light again into white light . Thus no dispersion is seen in glass slab | |
| 67138. |
What is dobereins trade |
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Answer» Dobereins arrange elements in the order of increasing atomic masses. He identified some groups having 3 elements each. He called these groups triads. For eg- Li, Na, KWhen elements were arrange in order of incresing atomic masses then the atomic mass of middle element was roughly the averge atomic masses of other 2 elements. When elements are arranged in the order of increasing atomic masses, groups of the three elements (known as traids), having similar chemical properties are obtained .The atomic mass of the middle element of a traid being equal to the arithmetic mean of the atomic masses of the other two elements. |
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| 67139. |
What is genetic drift simply??? |
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Answer» \xa0Genetic drift is when chance events cause changes in frequencies of alleles in a population. Alleles are the genetic\xa0variations in a population, and they are the driving force behind the evolution of that population . The random change in gene frequency and gene number by chance only irrespective of its being advantageous or not in a population is called genetic drift............. HOPE IT WILL HELP YU?? |
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| 67140. |
Name an animal in which individuals can change ***....? |
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Answer» Yes pooja it is correct both snail and earthworm can change their gender according to the population of species in their community. While reptilles like crocodile\'s gender are determined in their egg stage by Temperature of environment. I think earth worm clownfish wrasses moray eels gobies and other fish species are known to change *** including reproductive function |
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| 67141. |
Did oswal book are good |
| Answer» They are very good | |
| 67142. |
They will reduce mark for not drawing drawings without asking in a question |
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Answer» I, think bio me, agar diagram kroge to vo jyada attractive hoga........ Pucha h to bna dena...otherwise nooo...marks nhi cut honge |
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| 67143. |
Temprary preporation |
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| 67144. |
Kya \'more to know\' mein Se exam mein questions aate hair? |
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| 67145. |
Which cell division occuring in zygote in formation of foetus? |
| Answer» Mitosis | |
| 67146. |
Give a example of precipitation reaction |
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Answer» Kcl+AgNo3_________________AgCl+KNo3 All double displacement reaction are precipitation reaction Na2So4+BaCl2-------------------------Baso4+NaCl |
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| 67147. |
What is tha difference between displacement and double displacement reaction?☺ |
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Answer» In displacement reaction, more reactive element displaces less reactive element from its compound. eg. Zinc is more reactive than copper and hence, it displaces copper from copper sulphate solution.Zn(s) + CuSO4 → ZnSO4 + Cu(s)In double displacement reaction, two compounds exchange their ions and form two new compounds. eg. Silver nitrate and sodium chloride exchange NO3- and Cl- ions between them to form silver chloride and sodium nitrate.AgNO3 + NaCl → AgCl ↓+ NaNO3 In displacement reaction a more reactive metal displaces less reactive metal from its compound............... bt......... Double displacement reaction- Those reactions in which two different atoms or groups of atoms are displaced by other atoms or groups of atoms.. |
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| 67148. |
How to formed ozone layer in the atmosphare |
| Answer» When two oxygen molecule react with a single oxygen then ozon layer form | |
| 67149. |
are Epicotyl hypocotyl part of syllabus in biology |
| Answer» Not at all | |
| 67150. |
Is fermentation part of our syllabus? |
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Answer» Yaa Yes |
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