(a) Hiv and Hepatitis-B are STDs. Mention the two other ways by which they can be transmitted to a healthy person. (b) Why is early deterction of SRD essential ? Wha can it lead to otherwise ? Explain.

(a) Hiv and Hepatitis-B are STDs. Mention the two other ways by which

1.	(a) Hiv and Hepatitis-B are STDs. Mention the two other ways by which they can be transmitted to a healthy person. (b) Why is early deterction of SRD essential ? Wha can it lead to otherwise ? Explain.
Answer» (a) These diseases can be transmitted to a healthy person in the following ways : 1. Unsafe blood transfusion. 2. From infected to foetus. (b) Early detertion of STD is essential for timely cure. Otherwise this can lead to Pelvic Inflammatory Diseases (PID), aboprtions or even cancer of the reproductive tract.

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(i) Arrange the following compounds in an increasing order of basic strength : `C_(6)H_(5)NH_(2), C_(6)H_(5)N(CN_(3))_(2), (C_(2)H_(5))_(2)NH and CH_(3)NH_(2)` (ii) Arrange the following compounds in a decreasing order of `pK_(b)` values: `C_(2)H_(5)NH_(2), C_(6)H_(5)NHCH_(3), (C_(2)H_(5))_(2) NH and C_(6)H_(5)NH_(2)`
Rerrange the following in an increasing order of their basic strengths: `C_(6)H_(5)NH_(2),C_(6)H_(5)N(CH_(3))_(2),(C_(6)H_(5))_(2)` NH and `CH_(3)NH_(2)`.
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(a) Hiv and Hepatitis-B are STDs. Mention the two other ways by which they can be transmitted to a healthy person. (b) Why is early deterction of SRD essential ? Wha can it lead to otherwise ? Explain.

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