Class 12 Chemistry - Chapter Chemistry in Everyday Life NCERT Solutions | Sleeping pills are recommended by doctor
Sleeping pills are recommended by doctors to the patients suffering from sleeplessness but it is not advisable to take its doses without consultation with the doctor, Why?
Most drugs when taken in doses higher than recommended may cause harmful effects and sometimes, may even lead to death. Hence, a doctor should always be consulted before taking any medicine. Sleep is a normal physiological phenomenon in man. Sleeplessness (insomnia) may result form variety of causes and which under certain condition need treatment. Hypnotics and sedatives are the drugs used to produce drowsiness and promote sleep. These drugs depress the central nervous system. If these drugs are used in higher doses will cause serious side effects, which may lead to death in certain cases. So whenever sleeping pills are to be taken they should be taken after consultation with doctor about the dose concentration and dose timing.
More Questions From Class 12 Chemistry - Chapter Chemistry in Everyday Life
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Why do soaps not work in hard water?
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Explain the following terms with suitable examples
(i) cationic detergents
(ii) anionic detergents and
(iii) non-ionic detergents.
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How do antiseptics differ from disinfectants ? Give one example of each.
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Why is use of aspartame limited to cold foods and drinks?
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With reference to which classification has the statement, ranitidine is an antacid been given?
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Write the chemical equation for preparing sodium soap from glyceryl oleate and glyceryl palmitate. Structural formulae of these compounds are given below.
(i) (C15H31COO)3 C3H5 - Glyceryl palmitate
(ii)(C17H33COO)3 C3H5 - Glyceryl oleate
- Q:-
Name a substance which can be used as an antiseptic as well as disinfectant.
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What are artificial sweetening agents? Give two examples.
Popular Questions of Class 12 Chemistry
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For the reaction R → P, the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction using units of time both in minutes and seconds.
- Q:-
Write the formulas for the following coordination compounds:
(i) Tetraamminediaquacobalt (III) chloride
(ii) Potassium tetracyanonickelate(II)
(iii) Tris(ethane-1,2-diamine) chromium(III) chloride
(iv) Amminebromidochloridonitrito-N-platinate(II)
(v) Dichloridobis(ethane-1,2-diamine)platinum(IV) nitrate
(vi) Iron(III) hexacyanoferrate(II)
- Q:-
(i) Write structures of different isomeric amines corresponding to the molecular formula, C4H11N
(ii) Write IUPAC names of all the isomers.
(iii) What type of isomerism is exhibited by different pairs of amines?
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Why are solids rigid?
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Write any two characteristics of Chemisorption.
- Q:-
Write the structures of the following compounds.
(i) α-Methoxypropionaldehyde
(ii) 3-Hydroxybutanal
(iii) 2-Hydroxycyclopentane carbaldehyde
(iv) 4-Oxopentanal
(v) Di-sec-butyl ketone
(vi) 4-Fluoroacetophenone
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Which of the ores mentioned in Table 6.1 can be concentrated by magnetic separation method?
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Why are pentahalides more covalent than trihalides?
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Silver atom has completely filled d orbitals (4d10) in its ground state. How can you say that it is a transition element?
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Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six membered ring compounds) are insoluble in water. Explain.
Recently Viewed Questions of Class 12 Chemistry
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Which is a stronger reducing agent Cr2+ or Fe2+ and why?
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Which alkyl halide from the following pairs would you expect to react more rapidly by an SN2 mechanism? Explain your answer.
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p-Dichlorobenzene has higher m.p. and lower solubility than those of o- and m-isomers. Discuss.
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Classify the following as primary, secondary and tertiary alcohols:
(i)
(ii) CH2C = CH - CH2OH
(iii) CH3 - CH2 - CH2 - OH
(iv)
(v)
(vi)
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What is meant by 'disproportionation'? Give two examples of disproportionation reaction in aqueous solution.
- Q:-
Using IUPAC norms write the systematic names of the following:
(i) [Co(NH3)6]Cl3
(ii) [Pt(NH3)2Cl(NH2CH3)]Cl
(iii) [Ti(H2O)6]3+
(iv) [Co(NH3)4Cl(NO2)]Cl
(v) [Mn(H2O)6]2+
(vi) [NiCl4]2-
(vii) [Ni(NH3)6]Cl2
(viii) [Co(en)3]3+
(ix) [Ni(CO)4]
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How many geometrical isomers are possible in the following coordination entities?
(i) [Cr(C2O4)3]3-
(ii) [Co(NH3)3Cl3]
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Write the mechanism of the following reaction:
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