Units and Dimensions

Q.

What is the value of 500 Mg in kilogram?

1. 5 × 10⁶ kg

2. 5 × 10⁵ kg

3. 5 × 10⁷ kg

4. 5 × 10⁴ kg

Q. What is the ratio of the average molecular kinetic energy of UF6 to that of H2 both at 300K?

Q. What is a symbol? What information does it convey?

Q. Which of the following is a test for hydrogen gas?

1. It burns with a pop sound.
2. It turns blue litmus red.
3. It turns lime water milky.
4. It turns red litmus blue.

Q. One a.m.u. or one 'u' is equal to :

1. $1.66053892{10}^{-27}kg$
2. $1.66053892{10}^{-29}kg$
3. $1.23457656{10}^{-27}kg$
4. $1.23457656{10}^{-29}kg$

Q. Quantity of matter contained in a body is ....................... .

1. Mass
2. relative density
3. density
4. Volume

Q.

Statement 1: Atomic number of sodium is 11 and mass number is 23.
Statement 2: Atomic symbol of sodium is $1123Na$

1. Both statement 1 and statement 2 are true

2. Statement 2 is true but statement 1 is false

3. Statement 1 is true but statement 2 is false

4. Both statement 1 and statement 2 are false

Q.

Convert $675cm$in $m$.