short cot
Chemistry
Question: In water molecule, Hydrogen & water are held together by ______ bond.
- 1. Ionic
- 2. Covalent
- 3. Hydrogen
- 4. Dating
Question: The chemical symbol for silver is __________?
- 1. Au
- 2. Ag
- 3. Sv
- 4. At
Question: The only non metal exists in liquid state is ___________?
- 1. Mercury
- 2. Bromine
- 3. Phosphorus
- 4. Iodine
Question: Law of mass action was proposed by Goldberg and Peter Waage in _________?
- 1. 1864
- 2. 1866
- 3. 1888
- 4. None of These
Question: The product of the reaction between steam and Hydrocarbon in presence of Ni catalyst at 900°C is _____.
- 1. CO²+O²
- 2. CO+H²(water gas)
- 3. CO³+H²O
- 4. Laughing Gas
Question: The decomposition of nitroglycerine is an example of:
- 1. Self catalytic reaction
- 2. Enzyme catalytic reaction
- 3. Autocatalytic reaction
- 4. induced catalysis
Question: The phenomenon of negative catalysis is also known as:
- 1. auto catalysis
- 2. Self catalysis
- 3. inhibition
- 4. Enzyme catalysis
Question: Ostwald’s dilution law applicable to:
- 1. All electrolytes
- 2. Strong electrolytes
- 3. Non electrolytes
- 4. Weak electrolytes
Question: The best indicator for titrating HCl with NH4OH is: _________?
- 1. methyl Orange
- 2. litmus
- 3. phenol red
- 4. phenopthalein
Question: Species are formed in one step of reaction mechanism and used up in another step are called:
- 1. Catalyst
- 2. Intermediate
- 3. inhibitor
- 4. activated complex