Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
Which of the following compounds can be used as antifreeze in automobile radiators (a) Methyl alcohol (b) Glycol (c) Nitrophenol (d) Ethyl alcohol
11
Feb
Which of the following compounds can be used as antifreeze in automobile radiators (a) Methyl alcohol (b) Glycol (c) Nitrophenol (d) Ethyl alcohol Which of the following compounds can be used as antifreeze in automobile radiators (a) Methyl alcohol (b) Glycol (c) Nitrophenol (d) Ethyl alcohol February 11, 2021 Category: Uncategorised (JEE Advanced Physics by [...]
A student performs an experiment to determine the Young’s modulus of a wire, exactly 2 m long, by Searle’s method. In a particular reading, the student measures the extension in the length of the wire to be 0.8 mm with an uncertainty of ±0.05mm at a load of exactly 1.0 kg. The student also measures the diameter of the wire to be 0.4 mm with an uncertainty of ±0.01mm. Take g =9.8m/s2 (exact). The Young’s modulus obtained from the reading is close to
11
Feb
A student performs an experiment to determine the Young’s modulus of a wire, exactly 2 m long, by Searle’s method. In a particular reading, the student measures the extension in the length of the wire to be 0.8 mm with an uncertainty of ±0.05mm at a load of exactly 1.0 kg. The student also measures [...]
Rtaio of Cp and Cv of a gas ‘X’ is 1.4 . The number of atoms of gas ‘X’ present in 11.2 litres of it N.T.P. is
11
Feb
Rtaio of Cp and Cv of a gas ‘X’ is 1.4 . The number of atoms of gas ‘X’ present in 11.2 litres of it N.T.P. is Rtaio of Cp and Cv of a gas 'X' is 1.4 . The number of atoms of gas 'X' present in 11.2 litres of it N.T.P. is February [...]
A 20-liter container at 400 K contains CO 2(g) at pressure 0.4 atm and an excess of SrO. The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when the pressure of CO 2 attains its maximum value when the pressure of CO 2 attains its maximum value, will be:Given that: SrCO 3(s)⇌SrO(s)+CO 2 (g), Kp=1.6 atm.
11
Feb
A 20-liter container at 400 K contains CO 2(g) at pressure 0.4 atm and an excess of SrO. The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when the pressure of CO 2 attains its maximum value when the pressure [...]
Assertion : At high pressure , the compresssion factor Z is [ 1 + pb/RT ]. Reason : At high pressure vander Waals’ equation is modified as P ( V- b) = RT.
11
Feb
Assertion : At high pressure , the compresssion factor Z is [ 1 + pb/RT ]. Reason : At high pressure vander Waals’ equation is modified as P ( V- b) = RT. Assertion : At high pressure the compresssion factor Z is [ 1 + pb/RT ]. Reason : At high pressure vander Waals' [...]
Assertion: Presseure exertedby a gas in a container with increasing temperature of the gas. Reason : With the rise in temperature , the average speed of gas molecules increases.
11
Feb
Assertion: Presseure exertedby a gas in a container with increasing temperature of the gas. Reason : With the rise in temperature , the average speed of gas molecules increases. Assertion: Presseure exertedby a gas in a container with increasing temperature of the gas. Reason : With the rise in temperature the average speed of gas [...]
The edge of a cube is measured using a vernier callipers. [9 divisions of the main scale is equal to 10 divisions of the vernier scale and 1 main scale dividsion is 1mm]. The main scale division reading is 10 and 1st division of vernier scale was found to be coinciding with the main scale. The mass of the cube is 2.736g. Calculate the density in g/cm3 upto correct significant figures.
11
Feb
The edge of a cube is measured using a vernier callipers. [9 divisions of the main scale is equal to 10 divisions of the vernier scale and 1 main scale dividsion is 1mm]. The main scale division reading is 10 and 1st division of vernier scale was found to be coinciding with the main scale. [...]
A and B are ideal gases. The molecular weights of A and B are in the ratio of 1: 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture.
11
Feb
A and B are ideal gases. The molecular weights of A and B are in the ratio of 1: 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture. If P T represent pressure the correct [...]
A pre-weighed vessel was filled with oxygen at NTP and weighed. It was then evacuated, filled with SO 2 at the same temperature and pressure and again weighed. The weight of oxygen is
11
Feb
A pre-weighed vessel was filled with oxygen at NTP and weighed. It was then evacuated, filled with SO 2 at the same temperature and pressure and again weighed. The weight of oxygen is A pre-weighed vessel was filled with oxygen at NTP and weighed. It was then evacuated filled with SO 2 at [...]
Assertion : The ease of dehydration of the following alcohols is Reason : Alcohols leading to conjugated alkenes are dehydrated to a greated extent.
11
Feb
Assertion : The ease of dehydration of the following alcohols is Reason : Alcohols leading to conjugated alkenes are dehydrated to a greated extent. Assertion : The ease of dehydration of the following alcohols is Reason : Alcohols leading to conjugated alkenes are dehydrated to a greated extent. February 11, 2021 Category: Uncategorised (JEE Advanced [...]