Question

Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
ᴛᴜ ᴛᴀᴀɴ sᴀᴅᴅɪ ᴄᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛɪᴍᴇ sᴘᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛᴜ ᴛᴀᴀɴ sᴀᴅᴅɪ ᴄᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛɪᴍᴇ sᴘᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ

ᴠᴇ ᴍᴀɪɴ ʜɪ ᴛᴇʀᴇ ᴘɪᴄʜᴇ ᴘɪᴄʜᴇ ᴀᴜɴɪ ᴀᴀ
ᴍᴀɪɴ ʜɪ ᴛᴀɪɴᴜ ᴘʜᴏɴᴇ ᴍɪʟᴀᴜɴɪ ᴀᴀ
ᴠᴇ ᴍᴀɪɴ ʜɪ ᴛᴇʀᴇ ᴘɪᴄʜᴇ ᴘɪᴄʜᴇ ᴀᴜɴɪ ᴀᴀ
ᴍᴀɪɴ ʜɪ ᴛᴀɪɴᴜ ᴘʜᴏɴᴇ ᴍɪʟᴀᴜɴɪ ᴀᴀ

sᴀᴅᴅᴇ ᴛᴇ ᴛᴜ ᴍᴇʜᴀʀ ɴɪ ᴋᴀʀᴅᴀ
ᴛᴜ ᴛᴀᴀɴ sᴀᴅᴅɪ ᴄᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛɪᴍᴇ sᴘᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛᴜ ᴛᴀᴀɴ sᴀᴅᴅɪ ᴄᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ


ᴛᴇʀɪ ʜᴀʀ ʙᴀᴀᴛ ᴋᴏ ᴍᴀɪɴ sᴇʀɪᴏᴜs ʟᴇᴛɪ ʜᴏᴏɴ
ᴛᴜ ᴋᴀʀᴛᴀ ʜᴀɪ ᴍᴜᴊʜᴇ ɪɢɴᴏʀᴇ ᴠᴇ
sᴀᴄʜɪ sᴀᴄʜɪ ᴅᴀss ᴅᴏ ʏᴏᴜ ʟᴏᴠᴇ ᴍᴇ ᴏʀ ɴᴏ
ʏᴀ ᴛᴇʀᴇ ᴅɪʟ ᴠɪᴄʜ ᴋᴏɪ ʜᴏʀ ᴠᴇ

ᴛᴇʀᴀ ᴋᴀɪsᴇ ʟᴀɢᴛᴀ ᴊᴇᴇ ᴀᴇ
ʜᴀʏᴇ ᴠᴇ ᴛᴇʀᴇ ᴅɪʟ ᴠɪᴄʜ ᴋɪ ᴀᴇ
ᴛᴇʀᴀ ᴋᴀɪsᴇ ʟᴀɢᴛᴀ ᴊᴇᴇ ᴀᴇ
ʜᴀʏᴇ ᴠᴇ ᴛᴇʀᴇ ᴅɪʟ ᴠɪᴄʜ ᴋɪ ᴀᴇ

sᴀᴅᴅᴇ ɴᴀᴀʟ ᴛᴜ sʜᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛᴜ ᴛᴀᴀɴ sᴀᴅᴅɪ ᴄᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛɪᴍᴇ sᴘᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ
ᴛᴜ ᴛᴀᴀɴ sᴀᴅᴅɪ ᴄᴀʀᴇ ɴɪ ᴋᴀʀᴅᴀ ​

Answer 1

Answer:

Heloo ammu darling ki haal

Answer 2

Answer:

ᴍᴀɪ ᴋʏᴀ ʜɪ ʙᴏʟᴜ.. xᴅ

Sum of angles a regular polygon having side 9 = (9-2)×180°= 7×180° = 1260°

Each interior angle=1260/9 = 140°

Each exterior angle = 180° – 140° = 40°

Or,

Each exterior angle = sum of exterior angles/Number of angles = 360/9 = 40°