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State how a moving coil galvanometer can be converted into an ammeter.
Concept: Moving Coil Galvanometer
What is mass defect?
Concept: Mass Defect and Binding Energy
Draw a labeled diagram of a mature embryo sac.
Concept: Embryo Development Upto Blastocyst Formation
Write the complete name of the diagnostic test for AIDS.
Concept: Sexually Transmitted Diseases (STD)
State any three goals of the human genome project.
Concept: Human Genome Project
Write the complete name of the diagnostic test for AIDS.
Concept: Sexually Transmitted Diseases (STD)
Give one significant contribution to the following scientists:
Prof. R. Mishra
Concept: Ecology (Organism, Population, Community and Biome)
What is meant by positive deviations from Raoult's law? Give an example. What is the sign of ∆mixH for positive deviation?
Concept: Vapour Pressure of Liquid > Vapour Pressure of Liquid- Liquid Solutions
What is ferromagnetism?
Concept: Magnetic Properties
An element crystallizes in a f.c.c. lattice with a cell edge of 250 pm. Calculate the density if 300 g of this element contains 2 × 1024 atoms.
Concept: Calculations Involving Unit Cell Dimensions
An element with density 2.8 g cm–3 forms a f.c.c. unit cell with edge length 4 x 10–8 cm. Calculate the molar mass of the element.
(Given : NA = 6.022 x 1023 mol –1)
Concept: Calculations Involving Unit Cell Dimensions
The rate constant for the first-order decomposition of H2O2 is given by the following equation:
`logk=14.2-(1.0xx10^4)/TK`
Calculate Ea for this reaction and rate constant k if its half-life period be 200 minutes.
(Given: R = 8.314 JK–1 mol–1)
Concept: Temperature Dependence of the Rate of a Reaction
From the given cells:
Lead storage cell, Mercury cell, Fuel cell and Dry cell
Answer the following:
(i) Which cell is used in hearing aids?
(ii) Which cell was used in Apollo Space Programme?
(iii) Which cell is used in automobiles and inverters?
(iv) Which cell does not have long life?
Concept: Batteries > Primary Batteries
Write the IUPAC name of the given compound:
Concept: Nomenclature of Coordination Compounds - Naming of Mononuclear Coordination Compounds
When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write
(i) Structural formula of the complex.
(ii) IUPAC name of the complex.
Concept: Nomenclature of Coordination Compounds - Naming of Mononuclear Coordination Compounds
Write down the IUPAC name of the following complex: [Cr(NH3)2Cl2(en)]Cl (en = ethylenediamine)
Concept: Nomenclature of Coordination Compounds - Naming of Mononuclear Coordination Compounds
Draw the geometrical isomers of complex [Pt(NH3)2Cl2].
Concept: Isomerism in Coordination Compounds > Stereoisomerism
Write the IUPAC name of the complex [Cr(NH3)4 Cl2]Cl.
Concept: Nomenclature of Coordination Compounds - Naming of Mononuclear Coordination Compounds
Using IUPAC norms write the formulae for Potassium trioxalatoaluminate(III)
Concept: Importance and Applications of Coordination Compounds
How would you account for the following?
Transition metals and their compounds act as catalysts.
Concept: General Properties of the Transition Elements (D-block)
