std 7 sanskrut ch 8

What are STDs? Name two STDs. How can they be prevented?

List two most common STDs.

What is meant by STDs? Give example.

Which of the following reagent can carry out the converstion. CH_(3)(CH_(2))_(8)CH_(2)OH to CH_(3) (CH_(2))_(8)COOH

Which one of the following is best catalyst for the reaction shown below? CH_(3)(CH_(2))_(8)CH_(2)Brunderset("benzene")overset(KCN)toCH_(3)(CH_(2))_(8)CH_(2)CN

Which of these conditions might be a result of the late detection of STD's?

Assertion: Among STDs, HIV infection is most dangerous and fatal. Reason: Expect for hepatitis-B, genital herpes and HIV infections other STDs are preventable.

The mode and median of the data 8, 6, 8, 7, 6, 8, 7, 6 is A. 7 and 8 B. 6 and 7 C. 8 and 7 D. 6 and 8

Study the following arrangement carefully and answer the questions given below: 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7 How many such seven are there in the given series each of which is immediately preceded by 9 and also immediately followed by 8? 1) None 2 ) One 3)Two 4)Three 5)More than three

Which of the following contraceptive method is used can also help in preventing STD?