What is the value of `-273^@C` in kelvin scale?

What is C-value?

What will be the value of 1^C .

What is pH scale?

What is the value of C - C = C bond angle in benzene (C_(6)H_(6)) molecule?

What is the value of H - C -= C bond angle in acetylene (C_(2)H_(2)) molecule?

What is the value of H-C-H bond angle in methane.

What is the value of melting point of ice in kelvin scale?

What is the least count of a linear meter scale?

What is the value of universal gravitational constant (G) in C.G.S. unit?

20 vernier divisions are equal to 19 main scale division of an instrument of vernier constant 0.1 mm. What is the length of its smallest main scale divisions ?