Cramer's lightning round: Buy the stock of Linde

• It's that time again! "Mad Money" host Jim Cramer rings the lightning round bell, which means he's giving his answers to callers' stock questions at rapid speed.

Okta: "I think you should own Okta for yourself."

Plug Power: "I believe in the long-term, green hydrogen fuel case, and that is best played with Plug."

Chewy: Buy

Linde: "It has been a monster-good stock. All of these stocks are coming down now. I would encourage you ... to buy the stock of Linde."

Gevo: "We're going to do [homework] on it."

Disclosure: Cramer's charitable trust owns shares of Linde.

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