List out the merits and demerits of detergents, compared to soaps.

Name the surgical methods of birth control. write the merit and demerit of the above methods.

Analyse the merits and demerits of the following lamps and find out which is the best in the group . Justify your answers. Filament lamp

Analyse the merits and demerits of the following lamps and find out which is the best in the group . Justify your answers. Fluorescent lamp

Analyse the merits and demerits of the following lamps and find out which is the best in the group . Justify your answers. Arc lamp

Analyse the merits and demerits of the following lamps and find out which is the best in the group . Justify your answers. CFL

Analyse the merits and demerits of the following lamps and find out which is the best in the group . Justify your answers. LED Bulb

List out the name and chemcial formula of the compound formed by this elements Halogen Family with s block elements?

List out the instruments that use electrochemical cells. What are the merits and demerits of using such cells?

Some information related to the elements of the p block in the 17th group of the periodic table are given in the table below. Complete the able and analyse the following questions. a) What is the family name of element belonging to 17th group? b) what is their common valency? c) Which element has the highest electronegativity? d) Which element has highest ionisation energy? e) List out the name and chemical formula of the compounds formed by this elements with s block elements. '(##VPU_TTT_CHE_X_P01_C01_E02_002_Q01##)'

List out the uses of ethanoic acid.