Important Questions of Chemistry in Everyday Life Chemistry | Zigya

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141.

Which of the following is a use of alum?

  • Making explosives

  • Bleaching clothes

  • Water softening

  • All of the above


142.

Among the following, the narrow spectrum antibiotic is :

  • Ampicillin

  • Amoxycillin

  • Chloramphenicol

  • Penicillin G


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