Hallmarking applies to
Ainternet services
Bpetroleum products
Cgold and silver jewellery for purity
Dvehicles
Answer & Solution
Correct answer: C. gold and silver jewellery for purity
1. BIS hallmarking certifies the purity of gold/silver jewellery.
2. Mandatory marking ensures consumers know the karat/fineness.
3. Protects against adulteration.
_Source: NCERT Class 10 Understanding Economic Development, Ch 5 "Consumer Rights"_
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