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.
| 51801. |
Give IUPAC name of CH₂COCH₂CH(OH)CH₂. |
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Answer» hiExplanation:STEP 1: Identify the groupIn the given hydrocarbon, an aldehyde group is PRESENT at the first position. Therefore the SUFFIX will be given as –al.STEP 2: Find the longest carbon chainThe hydrocarbon consists of FOUR carbon atoms in the longest chain or parent chain. Therefore, the hydrocarbon is named as butane.STEP 3: Number the carbon atoms present in the longest chainThe numbering of the carbon atom is shown in the diagram. The numbering will start from the highest priority group that is the functional group in this compound.STEP 4: COMBINE the entire element into a single IUPAC NAMETHE IUPAC name of the compound CH3CH2CH2CHO is butanalplease Mark me brainliest pls please |
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| 51802. |
Explain nucleophilic reactions mechanism in organic compounds |
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Answer» A nucleophilic addition reaction is a chemical addition reaction in which a NUCLEOPHILE forms a SIGMA bond with an electron deficient species. These reactions are considered very important in organic chemistry SINCE they enable the CONVERSION of carbonyl groups into a variety of functional groups. |
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| 51803. |
How electronegativity related with hardness of bases |
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Answer» The LARGE electronegativity differences between HARD acids and hard bases give rise to strong ionic interactions. * The electronegativities of SOFT acids and soft bases are almost same and hence have LESS ionic interactions. i.e., the interactions between them are more COVALENT. |
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| 51804. |
Calculate the total number of electrons present in s orbital of scandium |
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| 51805. |
There are three shells in the atom of an element. Its outermost shell contains 3 electrons, mass number and atomic number is 13 drw bohr model fo atom |
| Answer» TION:a medicine (such as penicillin or its derivatives) that inhibits the GROWTH of or DESTROYS MICROORGANISMS. | |
| 51806. |
Translate the following statement into chemical equation and then balance them |
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| 51807. |
Translate the following statement into chemical equation and then balance them correct option |
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Answer» Translate the following statements into chemical equations and then balance them:(a) Hydrogen gas combines with NITROGEN to form AMMONIA.(b) Hydrogen sulphide gas burns in air to GIVE water and sulphur dioxide.(c) Barium CHLORIDE reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.(d) POTASSIUM metal reacts with water to give potassium hydroxide and hydrogen gas. |
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| 51808. |
What are the disadvantages of bleaching power using as a disinfectant ? |
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Answer» Bleaching powder reacts with WATER to FORM HOCI and nascent oxygen which are powerful GERMICIDES i.e. Germs +[O] → Germs are oxidised. Disadvantages of adding bleaching powder: Bleaching powder introduces calcium in water therefore making it harder.Explanation:Hello guys I need support from you please follow me and mark me as BRAINLIEST also like me |
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| 51809. |
calculate the temperature at which a gas a at 20 degree Celsius having a volume of 500 cc will occupy a volume of 250 cc |
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Answer» I HOPE this will HELP you ;)EXPLANATION: |
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| 51810. |
What happens when dilute hydrochloric acid is added to iron fillings? Tick the correct optio |
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Answer» When DILUTE HYDROCHLORIC acid is added to iron FILINGS, iron(II) chloride & hydrogen gas is produced. In this reaction iron displaces hydrogen from hydrochloric acid to form iron chloride & hydrogen gas this reaction is a SINGLE displacement reaction. |
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| 51811. |
IUPAC name of aniline!!!! |
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Answer» PhenylamineExplanation:HOPE IT HELP UPLEASE MARK ME AS A BRAINLIEST... |
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| 51812. |
28. Alkall metals are: (a) Acidic in nature (B)Strong oxidizing agent (C)Amphoteric nature (D)Strong reducing agents |
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Answer» hiExplanation:OPTION a is CORRECT PLS MARK me BRAINLIEST because pls mark me brainliest |
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| 51813. |
The infoldings of mitochondria is known as cristae. correct it. manya ho idhar help karo |
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Answer» I am not UNDERSTAND this questionsorry EXPLANATION:SORRY |
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| 51814. |
Do they believe that by using ur principle will heal and our natural resources will be safe? our mother nature |
| Answer» HI fffgghbjyrfghuthjhy43fh | |
| 51815. |
Credit of neutron discovery goes to!!! |
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| 51817. |
Why are all fibres first converted into yarns |
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Answer» tion:Fibres are FIRST CONVERTED into yarn by the process of spinning. In the process of spinning, fibres from a MASS of cotton (or wool, silk, etc.) are drawn out and TWISTED. This brings the tiny fibres together to form a long and twisted thread CALLED 'yarn'. |
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| 51818. |
Give some names of allotropic forms of group IV-A group elements |
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Answer» The PARTS of the Periodic Table - Angelo State University Group 4A (or IVA) of the periodic table includes the nonmetal carbon (C), the metalloids silicon (Si) and germanium (Ge), the metals tin (Sn) and lead (PB), and the yet-unnamed artificially-produced element UNUNQUADIUM (UUQ). |
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| 51819. |
The rate of reaction between 0.1 M Na2S2O3 and 1 M HCl does not depend on |
| Answer» PRESSURE EXPLANATION:PLEASE MARK me as a BRILLIANT | |
| 51820. |
Paper burn to ash is chemical reaction |
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Answer» Yes, it is a chemical reaction as new substances like ash, CARBON dioxide and other gases. Moreover, this change is IRREVERSIBLE by PHYSICAL PROCESSES. |
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| 51821. |
What is the maximum number of electrons in a) principle shell b) s,p,d and f sub shells c) an orbital it's urgent - |
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Answer» an orbitalExplanation:ORBIT is ALSO KNOWN as SHELLS:) in CHEMISTRY. |
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| 51822. |
In hydrogen atom, electron is present in 6th energy level, which is/are correct about the Hydrogen spectrum? (1) Total 15 emission lines are observed in spectrum.(2) 4 emission lines belong to Lyman series and 5 emission lines belong to Balmer series.(3) 2 emission lines belong to Brackett series and 3 emission lines belong to Paschen series.(4) One emission line belongs to Humphrey series. |
| Answer» 1.) TOTAL 15 emission LINES are observed in spectrum | |
| 51823. |
ಒಂದು ಧಾತು ಆಕ್ಸಿಜನ್ ಜೊತೆ ವರ್ತಿಸಿ ಕರಗುವ ಬಿಂದುವನ್ನು ಹೊಂದಿರುವ ಸಂಯುಕ್ತವನ್ನು ಉಂತುಮಾಡುತ್ತದೆ. ಈ ಸಂಯುಕ್ತವು ಸುಲಭವಾಗಿ ಕರಗುತ್ತದೆ ಸಾಮಾನ್ಯವಾಗಿ ಆ ಧಾತು ಯಾವುದಾಗಿದೆ. a.ಕ್ಯಾಲ್ಸಿಯಮ್ b.ಕಾರ್ಬನ್c.ಸಿಲಿಕಾನ್d.ಕಬ್ಬಿಣ |
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Answer» ಒಂದು ಧಾತು ಆಕ್ಸಿಜನ್ ಜೊತೆ ವರ್ತಿಸಿ ಕರಗುವ ಬಿಂದುವನ್ನು ಹೊಂದಿರುವ ಸಂಯುಕ್ತವನ್ನು ಉಂತುಮಾಡುತ್ತದೆ. ಈ ಸಂಯುಕ್ತವು ಸುಲಭವಾಗಿ ಕರಗುತ್ತದೆ ಸಾಮಾನ್ಯವಾಗಿ ಆ ಧಾತು ಯಾವುದಾಗಿದೆ.a.ಕ್ಯಾಲ್ಸಿಯಮ್ b.ಕಾರ್ಬನ್c.ಸಿಲಿಕಾನ್d.ಕಬ್ಬಿಣ |
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| 51824. |
Derive ostwald dilution low for week acid |
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Answer» In case of a weak electrolyte at a given temperature, the DEGREE of ionization is inversely PROPORTIONAL to the square root of the molar concentration or directly proportional to square root of the VOLUME of the solution which contains one mole of the electrolyte. This is called OSTWALD's DILUTION Law. |
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| 51825. |
Highlight three ways in which end point can be achieved without an indicator |
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Answer» tion:The indicator used for the detection of end point in WEAK acid and strong base TITRATION is phenolphthalein.A potentiometer or a redox indicator is usually used to determine the endpoint of the titration, as when one of the CONSTITUENTS is the OXIDIZING agent potassium dichromate. The color change of the SOLUTION from orange to green is not definite, therefore an indicator such as sodium diphenylamine is used. |
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| 51826. |
Beryllium is resistive to complete oxidation. Why? |
| Answer» TION:As little as 50 parts per million of beryllium alloyed with liquid magnesium leads to a significant increase in oxidation resistance and DECREASE ...Oxidation states: 0, +1, +2 (an amphoteric oxide)Electrical resistivity: 36 nΩ⋅m (at 20 °C)Atomic number (Z): 4Atomic RADIUS: empirical: 112 pm | |
| 51827. |
Arrange the elements in the distance table by Mendeleev's distance table |
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Answer» this MAY useful just CHECK out this EXPLANATION:nice question |
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| 51828. |
Calculate the wave length of a bullet of mass 1.5 g which moves with a velocity of 750 m/s. |
| Answer» SEE the ATTACHMENT HOPE it HELPS you | |
| 51829. |
Write about making chemical equation more information. |
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Answer» What are the various WAYS in which a CHEMICAL EQUATION can be made ... (a) The various ways in which a chemical equation can be made more informative are : (i) By indicating the physical states of the reactants and PRODUCTS. Example: Gaseous state is indicated by the symbol (g). (ii) By indicating the heat changes TAKING place in the reaction. |
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| 51830. |
What is the importance of chemistry describe in points? |
| Answer» CHEMISTRY is IMPORTANT because EVERYTHING you do is chemistry! Even your body is made of chemicals. CHEMICAL reactions occur when you breathe, eat, or just sit there reading. All matter is made of chemicals, so the importance of chemistry is that it's the study of everything.Explanation:mark me BRAINLIEST | |
| 51831. |
State the reaction of manganese dioxide with chlorine gas. (Not hcl) Please give relevant answers Thank you |
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Answer» tion:Hydrochloric acid gives out CHLORINE when REACTS with oxidising agents. ... ◼Manganese DIOXIDE is a, powerful oxidising AGENT. So, When manganese dioxide is added to HCl it gives out greenish YELLOW gas which is chlorine with water and a salt. |
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| 51832. |
What happen to the nature of oxides from left to right in period |
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Answer» I don't KNOW because I don't know yesssssssssssssssss |
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| 51833. |
In which form do the water molecules have more kinetic energy |
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Answer» solidExplanation: |
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| 51834. |
Furan react with chlorine to form |
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Answer» or PRODUCT of REACTION of FURAN with CHLOROFORM in presence of a strong base is an ALDEHYDE, C₂H₄O. |
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| 51835. |
निम्न अभिक्रिया का प्रकार बताइए C + O2 इक्वल टू CO2 |
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Answer» it's a COMBINATION REACTION.. |
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| 51836. |
Short note on 4th state of matter |
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Answer» Plasma is called the fourth state of matter after solid, liquid, and GAS. It is a state of matter in which an ionized substance becomes highly electrically conductive to the point that long-range ELECTRIC and magnetic FIELDS DOMINATE its behaviour.oh you are new in the app |
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| 51837. |
Which gas diffuses faster to slower. Arrange them. O2 H2 Cl2 N2 |
| Answer» H2 , N2 , CL2 ,O2Explanation:HOPE it is CORRECT | |
| 51838. |
What is saytzeff's rule? ..........my atmagyan i.d in attachment i m not on pin anymore |
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Answer» 's ruleIn organic chemistry, Zaitsev's rule is an empirical rule for predicting the FAVORED alkene PRODUCT in ELIMINATION reactions. While at the University of Kazan, Russian chemist ALEXANDER Zaitsev studied a variety of different elimination reactions and OBSERVED a general trend in the resulting alkenes. |
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| 51839. |
Which of the following compound contain one choral carbon atom |
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| 51840. |
How is synthetic fibre similar to natural fibre? |
| Answer» HOPE it's helpfulplease MARK me as BRAINLIEST | |
| 51841. |
Hey guys...doubt in class 11 chemistry we all know that copper does not follow the regular rule of atomic configuration ..why is it so?please explain with correct atomic configurationdon't spam ...I'll report |
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Answer» is an EXCEPTION to the rules for writing ELECTRON CONFIGURATIONS! In writing the electron configuration for Copper the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the NEXT 2 electrons for Copper go in the 2s orbital. The next six electrons will go in the 2p orbital. |
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| 51842. |
Why is blue vitriol added to whitewash? Please give relevant answers Thank you |
| Answer» TRIOL is in blue colour as it contains 5 molecules of WATER crystallization (cuSO4H2O).when it is heated,it loses water of crystallization and BECOMES an hydrous CUSO4 which is grey-white in colour.by TEDDY bear ✌️ | |
| 51843. |
Total number of spectral regions in a spectrum is |
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| 51844. |
Convert the following temperature into Celsius scale: i. 283 K ii. 490 K iii. 540 K iv. 390 K |
| Answer» PLEASE MARK me BRAINLIST | |
| 51845. |
Protein contain ----------linkage * |
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Answer» peptidehope it's helpfulplease MARK me as BRAINLIEST |
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| 51846. |
Aapanne attrni sugandh lamba antar sudhi aave che |
| Answer» HI kemchoExplanation:QUESTION not COMPLETE | |
| 51847. |
Which bond is formed when metal reacts with non metals |
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Answer» tals react with non-metals, ELECTRONS are transferred from the metal ATOMS to the non-metal atoms, FORMING IONS . The resulting compound is called an ionic compound . Magnesium + Oxygen → Magnesium oxide |
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| 51848. |
A gas perform the work of energy equal to 1000J by absorbing the heat 1600J the internal energy change for the process is A)2600j B)-600j C)600j D)1300j |
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| 51849. |
state the appropriate term, used for a liquid or solution, which can conduct electricity (along with some accompanying chemical changes). |
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Answer» The term USED is ELECTROLYTES. Electrolyte REFERS to the SUBSTANCE, which in FUSED state or in aqueous state conducts electricity.hope it will help you... |
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| 51850. |
Cva- euic- srn only those b Co me who will show their mom live don't come to see I will remove in 2 second |
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Answer» vdhdjsjskekeExplanation:ndnrnrdbejejeoeooe9e0eoeeorj |
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