Question Answers

Which of the following reactions does not involve oxidation reduction Which of the following reactions does not involve oxidation reduction November 25, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A wall 24 m long, 0.4 m thick and 6 m high is constructed with the bricks each of dimensions 25 cm x 16 cm x 10 cm. If the mortar occupies 1/10 th of the volume of the wall, then find the number of bricks used in constructing the wall. 0.4 m thick and [...]

Which of teh following is /are disproportionation redox changes (a) (NH4) 2 Cr2O7 gives N2 +Cr2O3 +4H2O (b) 5H2O2 +2CLO2 +2OH gives 2Cl +5O2 +6H2O Which of teh following is /are disproportionation redox changes (a) (NH4) 2 Cr2O7 gives N2 +Cr2O3 +4H2O (b) 5H2O2 +2CLO2 +2OH gives 2Cl +5O2 +6H2O November 25, 2020 Category: Uncategorised [...]

How many spherical lead shots of diameter 4 cm can be made out of a solid cube of lead whose edge measures 44 cm. How many spherical lead shots of diameter 4 cm can be made out of a solid cube of lead whose edge measures 44 cm. November 25, 2020 Category: Chapter 13 - [...]

How many spherical lead shots each of diameter 4.2 cm can be obtained from a solid rectangular lead piece with dimensions 66 cm, 42 cm and 21 cm? 42 cm and 21 cm? How many spherical lead shots each of diameter 4.2 cm can be obtained from a solid rectangular lead piece with dimensions 66 [...]

Marbles of diameter 1.4 cm are dropped into a cylindrical beaker of diameter 7 cm containing some water. Find the number of marbles that should be dropped into the beaker, so that the water level rises by 5.6 cm. Marbles of diameter 1.4 cm are dropped into a cylindrical beaker of diameter 7 cm containing [...]

No reactions occurs in which of the following equations (a) I +Fe gives (b) F2 +2NaCl gives (c) CL2 +2NaF Gives (d) I2 +2NaBr gives No reactions occurs in which of the following equations (a) I +Fe gives (b) F2 +2NaCl gives (c) CL2 +2NaF Gives (d) I2 +2NaBr gives November 25, 2020 Category: Uncategorised [...]

An ice-cream cone full of ice-cream having radius 5 cm and height 10 cm as shown in figure. Calculate the volume of ice-cream, provided that its 1/6 part is left unfilled with ice-cream. An ice-cream cone full of ice-cream having radius 5 cm and height 10 cm as shown in figure. Calculate the volume of [...]

Two solid cones A and B are placed in a cylindrical tube as shown in the figure. The ratio of their capacities is 2 : 1. Find the heights and capacities of cones. Also, find the volume of the remaining portion of the cylinder. find the volume of the remaining portion of the cylinder. Two [...]

Two cones with same base radius 8 cm and height 15 cm are joined together along their bases. Find the surface area of the shape so formed. Two cones with same base radius 8 cm and height 15 cm are joined together along their bases. Find the surface area of the shape so formed. November [...]