Day 354: MHT-CET Chemistry

1. A.
   $H_2SO_4$
2. B.
   $NO_2$
3. C.
   $SCl_2$
4. D.
   $SF_6$

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1. A.
   Polynucleotide strands wind into a right-handed double helix.
2. B.
   Sugar-phosphate backbone lies at inside and bases lie outside of helix.
3. C.
   Double helix is stabilized by hydrogen bonding formed in two strands.
4. D.
   A=T and G=C are complementary base pairs.

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1. A.
   2-methyl-1,3-butadiene
2. B.
   2-chloro-1,3-butadiene
3. C.
   Melamine
4. D.
   1,3-butadiene

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1. A.
   $\text{CH}_3\text{COONH}_4$
2. B.
   $\text{Na}_2\text{CO}_3$
3. C.
   $\text{NH}_4\text{Cl}$
4. D.
   NaCl

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1. A.
   Nylon 6
2. B.
   Nylon 6,6
3. C.
   Terylene
4. D.
   Neoprene

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