Question
Show by the help of a property of sodium chloride that sodium chloride is composed of ions
Show by the help of a property of sodium chloride that sodium chloride is composed of ions. OR Show how ionic bond…
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Show by drawing a Lewis dot diagram of CH4 that CH4 is formed by covalent bonds. (Atomic numbers of H and C are 1 and 6 respectively)
Show by drawing a Lewis dot diagram of CH4 that CH4 is formed by covalent bonds. (Atomic numbers of H and C…
Question
Write one characteristic of each of electrical heater wire and fuse wire.
Write one characteristic of each of electrical heater wire and fuse wire. [1 + 1]
Question
Write Snell’s law of refraction of light
Write Snell’s law of refraction of light. OR Write two characteristics of the image of an extended object formed when it is…
Question
A fixed mass of a gas occupies a volume of 580 cm3 at a temperature of 17°C and a pressure of 750 mm. What volume will the gas occupy at that pressure and at a temperature of 47°C?
A fixed mass of a gas occupies a volume of 580 cm3 at a temperature of 17°C and a pressure of 750…
Question
Mention two possible future effects of global warming on environment.
Mention two possible future effects of global warming on environment.
Question
Write IUPAC name for CH3CH=CH2
Write IUPAC name for CH3CH=CH2 [1] OR What is the disposition of the four valencies of carbon in methane?
Question
Which compound is formed by the reaction of atmospheric nitrogen and oxygen as a result of lightning?
Which compound is formed by the reaction of atmospheric nitrogen and oxygen as a result of lightning?
Question
Mention one reason for the relative chemical inertness of N2
Mention one reason for the relative chemical inertness of N2. OR Of the two substances used for the production of urea one…