Related InterviewSolutions

• The IUPAC name of the compound, `underset(OH)underset(|)(C)H_(2)-underset(NH_(2))underset(|)(C)H-COOH` isA. 2-amino-3-hydroxypropanoic acidB. 1-hydroxy-2-aminopropan-3-oic acidC. 1-amino-2-hydroxypropanoic acidD. 3-hydroxy-2-aminopropanoic acid.
• A plot of volume (V) versus temperature (T) for a gas at constannt pressure is a straight line passing through the origin. The plots at different values of pressure are shown in figure. Which of the following order of pressure is correct for this gas? A. `p_(1) gt p_(2)gtp_(3)gtp_(4)`B. `p_(1)=p_(2)=p_(3)=p_(4)`C. `p_(p) lt p_(2) lt p_(3) lt p_(4)`D. `p_(1) lt p_(2)= p_(3) lt p_(4)`
• Calculate the uncertainty in the momentum of an electron if it is confined to a linear region of length `1xx10^(-10)`metreA. `5.37xx10^(-27)" kg "ms^(-1)`B. `5.27xx10^(-27)" g "ms^(-1)`C. `5.37xx10^(-25)" g "ms^(-1)`D. `5.27xx10^(-25)" kg "ms^(-1)`
• Which is correct about saccharin ?A. B. It is 600 times sweeter than sugar.C. It is used as sweetening agent.D. All of these
• Among the electrolytes ` Na_(2)SO_(4) , CaCI_(2), AI_(2)(SO_(4))_(3) and NH_(4)CI` the most effctive oagulating agent for `Sb_(2)S_(3)` sol isA. `Na_(2)SO_(4)`B. `CaCI_(2)`C. `AI_(2)(SO_(4))_(3)`D. `NH_(4)CI`
• Capilary action of the liquid ca be explained on the basis of itsA. resistance to flowB. surface tensionC. heat of vaporisationD. refractive index
• Smoke is an example ofA. gas dispersed in liquidB. gas dispersed in solidC. solid dispersed in gasD. solid dispersed in solid
• The ratio of specific charge of a proton and an `alpha`-particle isA. `2:1`B. `1:2`C. `1:4`D. `1:1`
• The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at`A. `9R//400cm^(-1)`B. `7R//144cm^(-1)`C. `3R//4cm^(-1)`D. `5R//36cm^(-1)`
• Select the correct statement. In the gas equation, `PV=nRT`A. n is the number of molecules of a gasB. n moles of the gas have a volume VC. V denotes volume of one mole of the gasD. P is the pressure of the gas when only one mole of gas is present.