Write down the number of significant figures in the following: 4,00

Write down the number of significant figures in the following: 421

Write down the number of significant figures in the following: 4210

Write down the number of significant figures in the following: 4201

Write down the number of significant figures in the following: 0.0421

Write down the number of significant figures in the following: 421xx10^2

Write down the number of significant figures in the following: 0.4210

Write down the number of significant figures in the following: 1.4210

The number of significant figures in 0.050 is

State the number of significant figures in the following nựmbers. i. 62.4 ii. 0.0405 iii. 8.8674 iv. 50.0