tetramethyl meaning in Hindi

Examples

1. Tetramethyl ammonium nitratoborate is insoluble in cold water but slightly soluble in hot water.
2. Tetramethylammonium pentanitratoaluminate has been made by recrystalising tetramethyl ammonium tetranitratoaluminate in acetonitrile over several weeks.
3. It can form salts with large cations such as tetramethyl ammonium nitratoborate, or tetraethyl ammonium tetranitratoborate.
4. The total charge for this anion is 11 and the counterions are 5 tetramethyl ammonium cations and 6 potassium cations.
5. They are derivatives of 2, 2, 6, 6-tetramethyl piperidine and are extremely efficient stabilizers against light-induced degradation of most polymers.
6. Examples are the oxidized form of tetrathiafulvalene and the radical cation of " N, N, N', N'- tetramethyl-p-phenylenediamine ".
7. The compound can also be obtained by thermal decomposition of 2, 2, 3, 3-tetramethyl-4-one-glutaric acid with release of a carbon monoxide molecule.
8. In the first step, the carboxylate anion ( formed by deprotonation by an organic base [ not shown ] ) attacks HATU to form the unstable " O "-acyl ( tetramethyl ) isouronium salt.
9. Tetramethyl lead can react with diborane in a 1, 2-dimethoxyethane solvent at room temperature to make a range of methyl substituted diboranes, ending up at trimethylborane, but including 1, 1-di, tridiborane.
10. Tetramethyl lead can react with diborane in a 1, 2-dimethoxyethane solvent at room temperature to make a range of methyl substituted diboranes, ending up at trimethylborane, but including 1, 1-dimethyldiborane, and trimethyldiborane.