std 6 sanskrut ch 4

Basic question on formation OF quadratic equation || 6 std. graph OF quadratic polynomial

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

Which of the following is a stronger acid in each of the following pairs ? (a) CH_2 (Cl ) COOH,CH_2 (F ) COOH " " (b ) CH_2 (Cl) CH_2 CH_2 COOH ,CH_3 COOH , CH_3CH(Cl) CH_2 COOH (c ) CH_3 COOH ,C_6 H_5 CH_2 COOH " " (d ) m-NO_2 C_6 H_4 COOH ,p -NO_2 C_6 H_4 COOH (e ) p-NO_2 C_6 H_4 COOH ,C_6 H_5 COOH " " ( f ) m- OHC_6 H_4 COOH,p- OHC _6 H_4 COOH

List two most common STDs.

What is meant by STDs? Give example.

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

STD stands for

What is STD? Write the preventive measures of STDs

(a) Expand STDS (b) Cite any two examples for STDs. (c) Suggest any two methods for the prevention of STDs.

All reproductive tract infections RTIs are STDs, but all STDs but all STDs are not RTIs. Justify with example