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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.
| 2851. |
What is puberty? |
| Answer» Stage in which secondary sexual characters develop in both males and females.In males,***** become erect in day time or night or due to other reasons. Males start masterburate and female breast size increasePrivate hair start develop in in ***** and ******Attraction towards opposite *** and rise of emotions and . | |
| 2852. |
Limitations of mendeleev |
| Answer» Limitations of Mandeleev’s periodic table : Inspite of many advantages, the Mendeleev’s periodic table has certain defects also. Some of these are given below ;(A) Position of hydrogen : Position of hydrogen in the periodic table is uncertain. It has been placed in 1A group with alkali metals, but certain properties of hydrogen resemble those of halogens. So, it may be placed in the group for halogens as well.(B) Position of isotopes : Isotopes are the atoms of the same element having different atomic masses. Therefore, according to Mendeleev’s classification these should be placed at different places depending upon their atomic masses. For example, hydrogen isotopes with atomic masses 1,2 and 3 should be placed at three places. However, isotopes have not been given separate places in the periodic table because of their similar properties.(C) Anomalous pairs of elements “ In certain pair of elements, the increasing order of atomic masses was not obeyed. In these, Mendeleev placed elements according to similarities in their properties and not in increasing order of their atomic masses. For example :– The atomic mass of argon is 39.9 and that of potassium 39.1 But argon is placed before potassium in the periodic table.– Tellurium (at. mass = 127.6 ) is placed before iodine (at. mass = 126.9)(D) Some similar elements are separated, in the periodic table. For example copper (Cu) and mercury (Hg), barium (Ba) and lead (Pb). | |
| 2853. |
Fertilisation in plants defination ?????? |
| Answer» | |
| 2854. |
Who is father of henetic |
| Answer» George Mendel | |
| 2855. |
What is phylogeny |
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Answer» A phylogeny (or a tree of life) is a theory about how organisms are related to one another through evolutionary time. Phylogenies are based on the assumption that more closely related species will be more similar to one another, and they are commonly built using genetic sequences or physical characters. Evolution history of an organism. |
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| 2856. |
what is micelles formation ?? |
| Answer» The formation of a micelle is a response to the amphipathic nature of fatty acids, meaning that they contain both hydrophilic regions as well as hydrophobic regions. | |
| 2857. |
Why gold and silver does not corrode in air |
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Answer» Gold and silver are least reactive metal in the reactivity series of metal and do not lose electron easily. Hence they do not corrode and used for making jewellery. Because they are least reactive metal and do not easily get reacted with oxygen |
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| 2858. |
Symbol of Arsenic and Gold |
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| 2859. |
How natural selection directs evolution |
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| 2860. |
What are plant hormone ? and define it all |
| Answer» Plant hormones are chemicals that regulate plant growth.Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations.Plant hormones can be defined as a chemical messenger, which plays a vital role in controlling the entire life process and other activities in the plant cell like seed germination, ripening of the fruit, growth, flowering and lot more.A plant hormone is also referred as phytohormones. Drought, nutrients, temperature, light, and stress are the environmental factors that affect the production of plant growth hormone.Auxin :It is also referred as IAA- indole-3-acetic acid. It was the first phytohormones to be recognized. This plant growth regulator plays an important role in the growth and development of a plant.\xa0Cytokinins: Cytokinins are involved in promoting cell division (cytokinesis) hence it is referred to as Cytokinins. Zeatin is a naturally occurring plant growth hormone, which is isolated from corn plant. Cytokinins are present in all cell division sites including root tips, leaves, fruits and seeds.Gibberellins: Gibberellins are the most abundantly found hormone in plants. There are more than 70 gibberellins isolated. They are GA1, GA2, GA3 and so on. The GA3 Gibberellic acid is the most widely studied plant growth regulators.Ethylene: Ethylene is an organic compound and gaseous substance, which is produced from amino acid. It is present in large amount and is mainly produced by plants that are under stress. Ethylene helps in stimulating fruit ripening and determining the *** of a flower.Abscisic acid: It is a chemical messenger produced by other parts of a plant to indicate whether the plant is experiencing water stress, this signaling is mainly produced by drought roots and leaves. | |
| 2861. |
What is mandeleevs classification |
| Answer» | |
| 2862. |
Why soap is better cleaning agent then detergent |
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| 2863. |
Which type of question arrise for chapter heridity and evolution in board exams point of view |
| Answer» (1)common body design ,structure, DNA, offsprings. | |
| 2864. |
Magnification for lens is +ve or -ve |
| Answer» +ve | |
| 2865. |
How evolution and classification interlink each other . Explain |
| Answer» | |
| 2866. |
Describe the working of motor |
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Answer» Sorry, by ..mistake ho gaya Z |
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| 2867. |
Which is the world\'s largest dessert |
| Answer» Sahara | |
| 2868. |
Why are all the planets are of round shape? |
| Answer» All the planets are not in round shape They are mainly in oval shape | |
| 2869. |
What are phytohormones? |
| Answer» | |
| 2870. |
Prove that R=2*f |
| Answer» Hi | |
| 2871. |
Carbon atoms are reduced in finding isomer of any unsaturated compound after one another or not?? |
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| 2872. |
What are triads |
| Answer» A group of elements having same chemical property are called traids | |
| 2873. |
What is spinther |
| Answer» A sphincter is a circular muscle that normally maintains constriction of a natural body passage or orifice and which relaxes as required by normal physiological functioning. Sphincters are found in many animals. There are over 60 types in the human body .Sphincters relax at death, often releasing fluids. | |
| 2874. |
Who gave support to moosly to construct periodic table? |
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| 2875. |
What is newland octave? |
| Answer» Newland’s law of octaves: In the year 1866,John Newlands arranged the elements in the order of increasing atomic masses. Till then only 56 elements were known to us. He started with hydrogen which has the lowest atomic mass and finally ended at thorium which was the element known to have highest atomic mass at that time. He noticed that every eighth element exhibits similar properties as compared to the first element. He called this law as ‘Newland’s Law of Octaves’.According to Newland’s Law of Octaves, as the observed properties of lithium and sodium are same, sodium is placed at the eighth position with respect to lithium. | |
| 2876. |
What is electro negatively and electro positivity? |
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| 2877. |
How are the heredity is same as the genetics ? |
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| 2878. |
Who is known as the father of heredity? |
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Answer» G.mendal Gregor Johann Mendel George Mendel |
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| 2879. |
Describe the Digestion of food in small intestine |
| Answer» Partially digested food, or chyme, from the stomach is mixed with bile from the liver and pancreatic juice from the pancreas to complete its digestion in the duodenum. The jejunum is the middle section of the small intestine that serves as the primary site of nutrient absorption | |
| 2880. |
Describe in brief the digestion of food in the small intestine |
| Answer» The small intestine is a long tube that is approximately 18 feet long (6 meters). The small intestine is called small because the diameter or the width of the tube is much less than the large intestine. The parts of the small intestine include the duodenum, jejunum and the ileum. The duodenum is a segment of intestine between the stomach and the jejunum that is very active in digestion where many different enzymes mix from the stomach, liver, gallbladder and pancreas. The small intestine is the location in the body where the majority of the nutrients from ingested food are absorbed. Whereas the stomach is responsible for the churning and mechanical breakdown of food, the small intestine is very important for absorption. Digested food passes through the wall of the intestine into the blood vessels which then distribute the nutrition first to the liver and then through the rest of the body. | |
| 2881. |
Electricity chapter . Explain in short. |
| Answer» Electric current,circuit....potential difference...circuit diagram...ohms law...resistance...resistor...series...parallel...power...heat | |
| 2882. |
Formula for 2,4 dimethyl ethanol |
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Answer» I think this is not possible.. May be..?? Ask your teacher |
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| 2883. |
How is water transported through xylem |
| Answer» Plants have two systems for the transportation of substances - using two different types of transport tissue-Xylem and phloem. Xylem transports water and solutes from the roots to the leaves.Xylem vessels are involved in the movement of water through a plant - from its roots to its leaves via the stem.During this process:\tWater is absorbed from the soil through root hair cells.\tWater moves by osmosis from root cell to root cell until it reaches the xylem.\tIt is transported through the xylem vessels up the stem to the leaves.\tIt evaporates from the leaves (transpiration).\tThe xylem tubes are made from dead xylem cells which have the cell walls removed at the end of the cells, forming tubes through which the water and dissolved mineral ions can flow. The rest of the xylem cell has a thick, reinforced cell wall which provides strength. | |
| 2884. |
Why green plants are called autotrophs |
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Answer» Because that r autotrophs An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are autotroph because they produce their own food. |
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| 2885. |
Why salt are formed by neutralisation reactions |
| Answer» Because salt is formed by the reaction of acid vs base as in nuetralisation reaction | |
| 2886. |
How dna replicates why rna does not replicate |
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| 2887. |
write the chemical equations |
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| 2888. |
what is electromagnetic induction describe briefly? |
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| 2889. |
What is biopsy |
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| 2890. |
What is genotypic ratio of tri_hybrid cross |
| Answer» 1:2:1 | |
| 2891. |
What is the formula of Ethanoic acid |
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Answer» CH3COOH CH3COOH CH3COOH is formula of ethanoic acid also known as acetic acid having punjent smell , soluble in water , colourless , high boiling liquid also known as glacial acetic acid because it freezes at 17 deagree calcius .. it is acidic in nature .. CH3cooh |
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| 2892. |
Is graphene is hard than diamond ??????? |
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Answer» No diamond is the hardest non metal no |
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| 2893. |
state one function of pupil in human eye |
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| 2894. |
what are the steps to be taken to decrease population |
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| 2895. |
What is the role of motor areas in brain |
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Answer» There are several motor areas in brain that directly or indirectly involved in body movement. They activate the muscles and control the rhythmic movements like walking, running or swimming Cerebrum includes sensory areas association areas and motor areas Motor area is responsible for action of voluntary muscles |
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| 2896. |
What is octane rating? |
| Answer» | |
| 2897. |
IS positronium have atomic no and mass no both as 0 |
| Answer» | |
| 2898. |
Difference between inherited and acquired traits with example |
| Answer» INHERITED TRAITS ARE THOSE TRAITS WHICH ARE TRANSMITTED FROME ONE TO ANOTHER GENERATION. ACQUIRED TRAITS ARE NOT TRANSMITTED FROM GENERATION TO GENERATION | |
| 2899. |
Why does carbon formed compounds mainly by covalent bonding? |
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| 2900. |
The father of chemistry was |
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Answer» What\'s the problem, think yourself know5 Ramlal banwari ji Al chemist Antoine Lavoisier Antoine Lavoisier |
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