Name the scientist who suggested the theory of dual nature of matter?
AAlbert Einstein
BMax Plank
CNeils Bohr
DLouis de Broglie
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ഓസോൺ പാളിക്ക് സുഷിരം ഉണ്ടാക്കാൻ കാരണമായ വാതകം ഏത് ?
ഇന്ത്യൻ രസതന്ത്രത്തിന്റെ പിതാവാണ് :
വെർണറുടെ സിദ്ധാന്തത്തിലെ പ്രാഥമിക സംയോജകതയുടെ സ്വഭാവം എന്താണ്?
Which of the following is are NOT true for ionic compounds?
- i. Ionic compounds have low melting and boiling points.
- ii. Ionic compounds are brittle and break into pieces when pressure is applied.
- iii. Ionic compounds are solids and are somewhat hard because of the strong force of attraction between the positive and negative ions.
- iv. Ionic compounds conduct electricity in the molten state.
Consider the below statements and identify the correct answer?
- Statement I: Anhydrous sodium carbonate is used in soda-acid fire extinguishers.
- Statement II: Anhydrous sodium carbonate is dissolved in water and recrystallized to get washing soda crystals containing 10 molecules of water of crystallization.