Recent questions tagged ch11

The oxidation state of Sc in $Sc_2Si_2O_7$ is

asked Jul 25, 2014 by sreemathi.v

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The charge $x$ of $Si_6O_{18}^x$ will be

asked Jul 25, 2014 by sreemathi.v

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Which one of the following is a covalent carbide?

asked Jul 25, 2014 by sreemathi.v

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Each silicon atom in the trimer cyclic silicate has

asked Jul 25, 2014 by sreemathi.v

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Which of the following elements is not the constituent of zeolite A

asked Jul 25, 2014 by sreemathi.v

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Which of the following statements is correct?

asked Jul 25, 2014 by sreemathi.v

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Which of the following bonds has the highest bond energy ?

asked Jul 25, 2014 by sreemathi.v

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Which of the following is an allylide?

asked Jul 25, 2014 by sreemathi.v

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Which of the following is a acetylide?

asked Jul 25, 2014 by sreemathi.v

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Which of the following is a methanide?

asked Jul 25, 2014 by sreemathi.v

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Which of the following compounds of lead is the most stable?

asked Jul 25, 2014 by sreemathi.v

1 answer

Which of the following fuel gases has the highest calorific value?

asked Jul 25, 2014 by sreemathi.v

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Hydrolysis of $SiF_4$ in alkaline medium produces

asked Jul 25, 2014 by sreemathi.v

1 answer

Amongst the following element,which one has the highest melting point?

asked Jul 25, 2014 by sreemathi.v

1 answer

Lead pencil contains

asked Jul 25, 2014 by sreemathi.v

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Bond energy is highest amongst

asked Jul 25, 2014 by sreemathi.v

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Which of the following oxides is used in lead accumulators?

asked Jul 25, 2014 by sreemathi.v

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The only stable tetrahalide of lead is

asked Jul 25, 2014 by sreemathi.v

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Which of the following statements is not correct?

asked Jul 25, 2014 by sreemathi.v

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Which of the following statements is not correct?

asked Jul 25, 2014 by sreemathi.v

1 answer

Heating lead in air at higher temperature ($T \geq 725K)$,the oxide formed is

asked Jul 25, 2014 by sreemathi.v

1 answer

Which of the following equations is not actually observed?

asked Jul 25, 2014 by sreemathi.v

1 answer

In the purification of lead electrolytically,which of the following facts is not correct?

asked Jul 25, 2014 by sreemathi.v

1 answer

The chief ore of lead is

asked Jul 25, 2014 by sreemathi.v

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Which is the chief ore of tin?

asked Jul 25, 2014 by sreemathi.v

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Which of the following is not correct?

asked Jul 25, 2014 by sreemathi.v

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Which of the following statements regarding glass is not true?

asked Jul 25, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct ?

asked Jul 24, 2014 by thanvigandhi_1

1 answer

The dissolution of stannous hydroxide in excess base produces

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following facts is not correct ?

asked Jul 24, 2014 by thanvigandhi_1

1 answer

Which of the following oxides is an acidic oxide?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not true ?

asked Jul 24, 2014 by thanvigandhi_1

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

The atomic number of indium which belongs to 5th period is

asked Jul 24, 2014 by thanvigandhi_1

1 answer

The number of elements in Group 13 is

asked Jul 24, 2014 by thanvigandhi_1

1 answer

Which of the following elements does not belong to Group 13 of the periodic table ?

asked Jul 24, 2014 by thanvigandhi_1

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following statements is not correct?

asked Jul 24, 2014 by sreemathi.v

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Which of the following orders regarding the boiling point is correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

Which of the following orders regarding the melting points is correct?

asked Jul 24, 2014 by sreemathi.v

1 answer

An equilateral triangle is inscribed in the parabola $ y^2 = 4 ax$, where one vertex is at the vertex of the parabola. Find the length of the side of the triangle

asked Jul 24, 2014 by thanvigandhi_1

1 answer

A man running a racecourse notes that the sum of the distances from the two flag posts from him is always 10 m and the distance between the flag posts is 8 m. Find the equation of the posts traced by the man.

asked Jul 24, 2014 by thanvigandhi_1

1 answer

Find the area of the triangle formed by the lines joining the vertex of the parabola $ x^2 = 12y $ to the ends of its latus rectum.

asked Jul 23, 2014 by thanvigandhi_1

1 answer

A rod of length 12 cm moves with its ends always touching the coordinate axes. Determine the equation of the locus of a point P on the rod, which is 3 cm from the end in contact with the x-axis.

asked Jul 23, 2014 by thanvigandhi_1

1 answer

An arch is in the form of a semi-ellipse. It is 8 m wide and 2 m high at the centre. Find the height of the arch at a point 1.5 m from one end.

asked Jul 23, 2014 by thanvigandhi_1

1 answer

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