Which compound has most acidic hydrogen? Butane, 1 -butyne, 2-butyne, 1-butene

Which compound has most acidic hydrogen? Butane, 1 -butyne, 2-butyne, 1-butene

کس مرکب میں سب سے زیادہ تیزابیت والا ہائیڈروجن ہے؟
Explanation

In 1-butyne, the hydrogen is attached to a carbon with a triple bond (sp hybridization), which makes it more acidic because the carbon can better stabilize the negative charge formed after losing the hydrogen ion.